When Having a Baby Makes You Fight Constantly...

When Having a Baby Makes You Fight Constantly

Oh, I hear you. And I want you to take a breath, because what’s happening to you right now makes complete sense.

Here’s the thing about a baby coming into your relationship. You’ve just introduced the most profound attachment disruption imaginable. Not because something is wrong with you or your partner. But because you’ve both just had your primary attachment needs thrown into complete chaos, at the exact same time.

Think about what just happened. Before the baby, your partner was your person. The one your nervous system was constantly scanning for. “Are you there for me? Am I enough for you?” That’s what your body is always quietly asking, even when you think you’re just talking about dinner.

Now there’s this tiny, completely helpless little creature who needs EVERYTHING. And they need it now. And they cannot wait. They are the most urgent attachment signal in the room, every single time. And so you and your partner are suddenly both reaching for each other and getting… a baby. Or a depleted, overwhelmed person who just gave everything they had to the baby.

And your nervous system doesn’t process that logically. It just registers, “My person isn’t there for me.” And that feels, at the most primal level, like a threat. Not a disappointment. A threat. Like the dingo is coming and your person has their back turned.

So one of you starts to reach harder, maybe gets irritable, critical, demanding. “Why aren’t you HERE with me?” And the other one, who is already drowning in their own exhaustion and probably their own quiet terror of “am I doing this right, am I enough,” pulls back. Goes a little more silent. A little more absent. And now you’re both hurting, and you’re both making it worse for each other, and neither of you can see it because you’re both just in survival mode.

That’s the cycle. Four things, all the time, looping. You hurt inside. You protest. It lands on them. They hurt inside. They protest. It lands on you.

The fights are not about the baby. The fights are two people who love each other desperately, who are terrified they’ve lost each other, who cannot find a way to say, “I’m scared. I need you. I miss you. Come back to me.”

That’s what’s underneath all of it.

So the first thing I’d invite you to do is just notice that. The next time you feel that heat rising, ask yourself, before you say anything, “Am I angry right now, or am I actually scared?” Because I’d be willing to bet it’s fear. It almost always is.

You haven’t broken anything. You’re two people whose attachment system just got the biggest stress test of your lives. And the fact that you’re paying attention, the fact that you’re asking this question, that matters. That’s the beginning of finding your way back to each other.

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About Figs O’Sullivan, LMFT
Figs is a licensed marriage and family therapist with 16+ years of experience working with couples. He’s the co-founder of Empathi, host of the “Come Here to Me” podcast, and author of an upcoming book on relationships and the systems that shape how we love.

Read more: Co-Parenting After Divorce: What to Expect from Counseling

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Fiachra "Figs" O’Sullivan is a Certified EFT Therapist (ICEEFT), a renowned couples therapist, and the founder of Empathi.com. He believes the principles of secure attachment and sound money are the two essential protocols for building a future filled with hope. A husband and dad, he lives in Hawaii, where he’s an outrigger canoe paddler, getting humbled daily by the wind and waves. He’s also incessantly funny, to the point that he should probably see someone about that.

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Frequently Asked Questions

Why do new parents fight more after having a baby?+
Your fighting makes complete sense. You've just introduced the most profound attachment disruption imaginable into your relationship. Before the baby, your partner was your person, the one your nervous system was constantly scanning for safety. Now there's this tiny, helpless human who literally needs one of you to survive, and your nervous systems are in chaos. You're both Babies in Love competing for the same caregiver. The pursuer protests louder for attention they're not getting, while the withdrawer retreats deeper to avoid the shame of feeling inadequate as a new parent. It's not about the dishes or the feeding schedule. It's about two wounded nervous systems trying to figure out if they're still safe in this completely changed world.
Is it normal to resent your partner after having a baby?+
Absolutely normal, and I'm glad you're being honest about it. What you're experiencing is the Waltz of Pain on steroids. Your childhood strategies for getting love and avoiding abandonment just collided with your partner's, and now there's a baby in the middle amplifying everything. The resentment isn't really about your partner. it's about the terror that you're not going to get what you need to survive this massive life change. Your body is keeping score, and right now the ledger shows threat everywhere. The solution isn't to feel guilty about the resentment. It's to understand that you're both hurting and reacting, and the baby didn't break your relationship, it just revealed the cracks that were already there.
How can couples stop fighting so much with a new baby?+
First, stop trying to solve the surface problems. The fight isn't about who's more tired or who does more night feeds. It's about two nervous systems in survival mode. You need to create safety before you can problem-solve anything. This means acknowledging that you're both hurting and scared, not enemies. Practice the Rule of Four: if one of you is hurting, you're both hurting. If one is reacting, you're both reacting. The goal isn't to eliminate conflict but to break the Versus Illusion where you see each other as the problem instead of seeing the pattern. When you're ready to build these skills systematically, Figlet, our AI relationship coach can help you practice these conversations in real-time, which is often the next best thing to being in my office.