How to Stop Cheating Behavior and Stay Faithful...

How to Stop Cheating Behavior and Stay Faithful

Watch: Figs O’Sullivan, LMFT explains this. Start free with Figlet.

It is late. You are on your phone again, in a room where your partner is asleep, or in a car you pulled over into a parking lot so you could think. You have been Googling variations of the same question for weeks. How to stop cheating. How to stop wanting to cheat. How to stay faithful when I already broke it. You are exhausted from the lying. You are exhausted from the two phones, or the two accounts, or the two versions of yourself you have to keep straight in your head. And somewhere underneath the exhaustion is a much heavier feeling. You look at what you have done, or what you keep almost doing, and it confirms your worst suspicion about yourself. I am bad. I am destructive. I am unworthy.

I have been a couples therapist for seventeen years. I have sat with hundreds of people in that exact chair. And I want to tell you something before we go one inch further. If you are here because you want to stop, you are not the monster your shame is telling you that you are. But the way most people try to stop cheating, through willpower, guilt, and a promise to themselves, will not work. It has not worked. That is why you are still here at 2am typing into a search bar.

To actually stop the behavior and stay faithful, we have to look at what is running underneath it. Not the moral failure. The system.

Recognize yourself in this?

Talk to Figlet about it right now. AI relationship coaching grounded in Figs O’Sullivan’s work, LMFT. Free to start, no credit card.

Talk to Figlet about this →

The Lie Underneath the Lie

The Empathi Quiz

Which pattern is running your relationship?

Take the free three minute quiz and meet the creature behind the cycle you keep getting stuck in.

Take the quiz

Here is the first thing I need you to understand. Cheating is not a character flaw that lives inside you like a broken part. It is a behavior. Behaviors happen for reasons. And through the lens of attachment theory, the reason is almost always the same. There was a bond in your life that had gone quiet, or gone hostile, or gone hopeless. Your nervous system, which is wired from the cradle to the grave to seek emotional connection, went looking somewhere else.

I am not saying that to give you a pass. I am saying it because if you do not understand the mechanism, you will white-knuckle your way through six months of fidelity and then find yourself back in the parking lot again, staring at your phone, wondering what is wrong with you.

Your body has two questions running underneath every close relationship. Are you there for me. Am I enough for you. If both answers are yes, your nervous system rests. If either answer is no, or if it has been no for a long time, something in you starts scanning the horizon for somewhere the answer might be yes. That scan is often unconscious. It shows up as a work friendship that feels a little charged. A DM that you keep reopening. A coworker whose eye contact lasts a beat too long. Your body is not looking for sex. Your body is looking for the answer yes.

That is not an excuse. You are still responsible for what you did with the scan. But you cannot stop a behavior you do not understand.

From Empathi’s research: in 58,221 completed relationship assessments, 74.1% of the 6,159 couples where both partners completed were in the pursue-withdraw cycle. Both partners typically describe the other as the one withdrawing.

Read the full research from 58,221 assessments

The Dance That Set the Stage

Most of the people I work with who cheated were caught in a specific loop with their partner long before anyone crossed a line. I call it the Waltz of Pain. One partner reaches for connection with a kind of edge to it, protesting, criticizing, asking why they never feel prioritized. The other partner retreats, shuts down, feels like a constant disappointment, and disappears into work or the phone or the garage. The reacher reaches harder. The retreater retreats deeper. Both feel hurt. Both feel unseen. Nobody is a villain, but the system is grinding both of them down.

If you are the one who cheated, you were very likely the retreater. Your body was carrying a story that sounds something like this: I can never make her happy. Nothing I do is enough. She sees me as a failure. When someone from outside the system looked at you with easy warmth and no accumulated disappointment, your nervous system lit up in a way it had not lit up in years. It felt like oxygen. It also felt like proof that maybe you were not the failure you thought you were.

You mistook that oxygen for love. It was actually relief.

I have written more about how these old shame stories run adult relationships in my post on unresolved childhood trauma. The short version: the not-enough feeling you were trying to escape from at home did not start with your partner. It was probably installed decades earlier by a parent whose approval was conditional, or absent, or drunk. Your partner just happened to be the person whose disappointment finally landed on the exact bruise.

Why Willpower Fails

People who try to stop cheating with willpower alone almost always relapse. Here is why. Willpower operates in the prefrontal cortex, the thinking, planning part of your brain. Attachment threats operate in the limbic system, which fires long before the thinking brain gets a vote. When your partner rolls her eyes at you, or your boss humiliates you, or the loneliness in the marriage hits a certain pitch, your body goes into the same alarm state it went into as a small child. And that alarm state wants comfort. Fast.

If comfort is not available at home, and you have already carved a neural pathway to someone else, or to porn, or to a bar, or to a DM thread, your body will pull toward the pathway that has worked before. Willpower is trying to argue with a fire alarm using a legal brief. It does not stand a chance.

This is why stopping cheating is not a matter of promising harder. It is a matter of doing two things at once. Closing the door on the third party completely, and rebuilding the primary bond so that when the alarm goes off, your body has somewhere else to go.

Step One: Close the Door. All the Way.

If there is still an affair partner in the picture, or if the door is even a millimeter ajar, nothing else in this article will work. Not because you are a bad person. Because your nervous system cannot heal a bond while it is still splitting attention between two people. And your partner’s nervous system, if they know, cannot settle while there is a competing attachment interest in the room.

Close it. Block the number. Delete the account. Change jobs if you have to. Tell the other person, in writing, that you will not be in contact again, and mean it. If you cannot do this, you are not ready to stop. You are still hoping to keep both. And keeping both is the double life that is destroying you.

I want to name something clinical here that people miss. When you close the door, you will feel worse before you feel better. That third party was regulating your nervous system. When you cut off the source, the alarm you were medicating will come roaring back. This is the hardest week. The impulse to reach out again will feel unbearable. This is the moment where most people fold. Do not fold. Sit with the alarm. Let it move through your body. Call a therapist, a sponsor, a Figlet session, a friend who knows what is going on. The alarm passes. But only if you stop feeding the loop.

Step Two: Face the Shame Without Collapsing Into It

Here is where most people who want to stop cheating get stuck. They confuse feeling terrible with doing the work.

When the affair comes to light, or when you finally look at yourself honestly, your shame is going to hit like a truck. You will want to say things like “I am such a piece of shit” and “I do not deserve you” and “I cannot even talk about this.” That sounds like remorse. It is not. It is the Compass of Shame. It is you making the entire situation about your own suffering so you do not have to sit with the damage you caused.

I call the internal experience the Cocktail of Shame. Right now, your cocktail is 100 percent “I feel bad about myself.” That mix is useless. It keeps you self-focused, defensive, and unavailable. The mix we need is 20 percent “I feel bad about myself” and 80 percent “my heart is breaking for what I did to you.” You have to learn to tolerate the heat of your own guilt without collapsing into it, so that you can stay present for someone else’s pain.

If you are alone with this, and your partner does not know yet, the same principle applies internally. You cannot fix this by hating yourself harder. You have to hold what you did clearly, without disappearing into a puddle of self-loathing, long enough to understand why you did it and what needs to change.

Step Three: One-Way Repair

In the normal work I do with couples, I teach that nobody is the problem, the system is. But after an affair, we have to pause that framing. The injury is not symmetrical. One person dropped a bomb. The other person was standing in the explosion. For a season, sometimes a year or more, the traffic of repair flows one way.

One-Way Repair means you stop defending yourself. You stop explaining that it was not that bad. You stop saying it only happened twice, or that you did not love the other person, or that you were drunk. You look at your partner and you say, yes. It was that bad. I broke your reality. I made you feel crazy. I lied to your face. I had a life you did not know about. I see how badly I hurt you, and I am not going anywhere while you feel it.

This is not one conversation. This is hundreds of conversations, over years. Your partner will bring it up again. And again. And again. And each time, they are not attacking you. They are checking. Their nervous system is asking, is the splinter still there. Are you still with me. Do you still get it.

If you want to name your own pattern before you go further, you can take the free Figs Quiz to see the attachment shape you are working with.

Ready to work on this?

Figlet is AI relationship coaching grounded in attachment science and Figs O’Sullivan’s clinical work, LMFT. First messages free, no signup.

Start working on this with Figlet →

Step Four: The Ghost Three Years Later

Here is a scene I see constantly. A couple stayed together after an affair. They did the initial work. Life resumed. And then, three years in, every few weeks, there is a blowout. She brings up the affair. She is angry. He rolls his eyes. She sees the eye roll and gets louder. He shuts down harder. Both of them are exhausted and think the recovery failed.

It did not fail. What is happening is this. Her body just felt a spike of danger, something small, a late text, a smell of perfume, a memory. The splinter of the betrayal moved inside her. She is not asking him to grovel. She is asking, are you still here. Do you still know what you did. Are you still with me in this.

When she brings it up, his nervous system does not hear a request for reassurance. It hears “you are bad, you will always be bad, you are unforgivable.” He rolls his eyes. But that eye roll is not arrogance. It is despair. It is the collapse of someone who feels he is serving a life sentence.

The moment he rolls his eyes, her safety evaporates. She sees him turn away. She attacks louder. And they are back in a version of the loop that started this whole thing.

The way out is for the person who cheated to see the eye roll for what it is, catch himself, and come back with something like this. “I rolled my eyes because I got scared. I felt like I was failing you again and it crushed me. But I see you are hurting, and I turned away when I should have turned toward you. I am sorry. Tell me what you are feeling right now.” That is the repair. Over and over. For years.

Step Five: Build the Ground That Made You Vulnerable in the First Place

You cheated once. Or you have almost cheated many times. Either way, there is a vulnerability in you that has to be tended to, or the next affair partner is just a matter of time and circumstance.

That vulnerability is almost always some version of not-enoughness. A shame story installed early, that never got named, that made adult love feel like a job interview you were failing. Your work, separate from your work with your partner, is to go find that story and stop letting it drive.

That work is slow. It is somatic. It is the practice of feeling the not-enough feeling in your body without immediately reaching for something to make it go away. If you have never done this kind of work, a therapist trained in attachment or IFS or EFT is worth every dollar. So is honest sobriety from whatever your third-party habit is, whether that is a person, porn, alcohol, or work. If you want more on the deeper diagnostic question of what kind of trouble your relationship is actually in, I have written about that in my toxic-relationship framework and also in the piece on whether it is time to leave or it is your attachment style.

What Actually Changes

People who stop cheating and stay faithful, in my experience, have three things in common. They closed the door completely, without a back channel. They stopped using shame as a substitute for repair, and learned to hold their own guilt without making it their partner’s problem. And they went and found the younger, hungrier, ashamed part of themselves that was driving the car, and they gave that part what it actually needed, which was almost never sex or attention from a stranger. It was to be seen, held, and told the truth about its own worth.

That is the work. It is not glamorous. It is not fast. But it is what actually stops the behavior for good.

This is not a you problem or a them problem

“When two insecurely attached people interact, their protector strategies collide to form a negative feedback loop I call the Waltz of Pain. Your protector meets your partner’s protector. Their protector meets yours. Two childhood strategies collide, and the relationship becomes a reenactment of wounds neither partner caused.”

“Neither partner is the villain. They are two younger selves inside adult bodies trying to stay safe in the only ways they once knew.”

Figs O’Sullivan, LMFT

Common Questions

Can a cheater really change and stay faithful long-term?

Yes, but only if the reason for the affair is understood and the underlying attachment wound is worked on. Willpower alone has a high relapse rate. What predicts long-term fidelity is not remorse, it is repair. Closing the door completely, doing one-way repair with the partner, and doing individual work on the shame story that made the third party feel like oxygen in the first place.

How long does it take to stop wanting to cheat?

The pull toward a specific affair partner usually loses intensity within a few weeks of complete no-contact, though the alarm state that made you vulnerable will still fire. Wanting to feel wanted is not the problem. Turning that want toward a third party is. Rebuilding the primary bond, and doing your own shame work, is what quiets the pull over months, not days.

Should I tell my partner if they do not know I cheated?

This is a decision to make with a therapist, not a search engine. In general, secrecy corrodes the bond even when the partner does not know consciously, because your nervous system knows and it shapes how you show up. Disclosure is painful and destabilizing, but it also creates a shared reality from which real repair becomes possible. Timing, safety, and support matter enormously.

Why do I keep almost cheating even though I love my partner?

Loving your partner and having your attachment system in distress are two different things. If your body has been living with a chronic not-enough or unseen feeling in the relationship, it will keep scanning for relief, regardless of how much you love them. The scan is not a moral verdict. It is information. It is telling you the bond needs attention, and so does the old wound underneath it.

Is cheating always about the relationship, or sometimes just about the person?

It is almost always about both. The relationship system created the vacuum, and the individual’s shame story determined how they filled it. Two people can be in the exact same depleted marriage and only one strays, because only one has the specific inner wiring that makes an affair feel like a solution. That is why both the couple work and the individual work have to happen. Neither one alone is enough.

Do not just close the tab on this.

Bring what surfaced here into a real conversation. Figlet coaches you through it, grounded in Figs O’Sullivan’s work, LMFT. Free to start.

Talk to Figlet about staying faithful →

You are not a monster. You are a person whose nervous system found a bad solution to a real problem. Close the door. Face what you did without collapsing into shame. Do the repair. Then go find the part of you that was hungry in the first place, and feed it the truth instead of a lie. That is how the behavior stops. That is how you actually stay.

The Empathi Quiz

Every couple has a pattern they cannot see. Find yours.

In love, each of you is a Relentless or a Reluctant, which makes you one of three kinds of couple: Relentless and Reluctant, two Relentless, or two Reluctant. The free quiz reveals your creatures and the cycle they fall into together. About three minutes.

About three minutesCompletely freeBuilt on EFT science
Take the Empathi quiz

No signup needed to start.

The Relentless

The Reluctant

Which one are you?
Share this article

Figs O'Sullivan is a Licensed Marriage and Family Therapist (LMFT #79062) and the founder of Empathi. For 17 years he has helped couples move out of disconnection and back into secure, loving connection, drawing on Emotionally Focused Therapy and attachment science. With his wife Teale, he runs a San Francisco couples therapy practice, is a relationship expert to the Stars and Silicon Valley, and built Figlet, an AI relationship coach trained on their clinical work. His approach has guided more than 58,000 relationship assessments.

Related Articles

Scroll to Top
Share "How to Stop Cheating Behavior and Stay Faithful"
Reading this from the Bay Area? Figs and Teale see couples in person at 999 Sutter Street in San Francisco, and online across California. Free 30-minute consult
Man smiling and meditating in a therapy session setting.
Figs, Teale & Figlet
● Available 24/7
You’re not alone.
Neither is your relationship. Talk to us right now, any time.
Start coaching with Figlet
First 10 messages free. No credit card required.
Request a Free Consultation
Figlet is Figs in an AI bottle
Not sure where to start? Take the 3-minute quiz ›
Man smiling and meditating in a therapy session setting.
Ask Figlet AI
Empathi couple illustration

Before you go — curious about your relationship pattern?

Take a free 3-minute quiz and discover whether you tend to pursue or withdraw in conflict. You'll get a personalized report.

Take the Free Quiz → 13 questions • 100% free • No email required
Couples therapy session with Figs O'Sullivan, focusing on relationship counseling.

Learn the method that transforms relationships

Join the Empathi Method Masterclass — a self-paced online course built on attachment science by Figs & Teale O'Sullivan.

Explore the Masterclass → Self-paced • Science-backed • Start today
Empathi couple illustration Couples therapy session with Figs O'Sullivan, focusing on relationship counseling.

Get relationship insights in your inbox

Join our newsletter for science-backed tips on connection, conflict, and lasting love.

Free • No spam • Unsubscribe anytime

Frequently Asked Questions

Why do people cheat when they love their partner?+
The affair is never just one thing. It's never just 'I wanted someone else.' There's always a system underneath it, a gap that got so wide and hollow that one person went looking for something outside the relationship. When I sit with couples after an affair, I see two people who are babies in love, terrified of losing each other but completely unable to connect. The cheating partner isn't evil, they're often drowning in shame about their inadequacy in the relationship. The affair becomes a way to feel alive again when the marriage feels dead. It's not about loving your partner less, it's about the Waltz of Pain becoming so unbearable that escape feels like the only option.
Can a relationship survive cheating and infidelity?+
Yes, but only if both people are willing to do the proof-of-work of real repair. I use what I call the One-Way Repair protocol because affairs create asymmetrical trauma. The betrayed partner's nervous system has been shattered, and we can't just jump to 'both people contributed to the problems.' That's the Time Machine Error. The cheating partner has to sit in the full weight of what they've done before we can address the systemic issues that created the gap. But here's the thing: some of the strongest marriages I see are affairs that were repaired properly. When people do the hard work of understanding why the affair happened and closing that gap, they often end up more connected than before.
How do I know if my partner will cheat again?+
You're asking the wrong question, and I get why. Your nervous system is scanning for threat because it's been shattered. But whether someone will cheat again depends on whether you both address the system that created the affair in the first place. Can they sit with shame without running? Can they handle your pain without getting defensive? Can you both learn to repair the Waltz of Pain instead of dancing it? These are skills, not character traits. If you need support figuring this out, Figlet, our AI relationship coach can help you identify the patterns and give you tools for repair between sessions.