Fight-or-Flight in Marriage: Understanding Your Conflict Style

I'll never forget a couple I counseled years ago—let's call them Dave and Carolyn. Dave would explode in anger whenever disagreements arose, while Carolyn would shut down completely, retreating to another room or busying herself with tasks. They came to me exhausted and confused. "Why can't we just talk like normal people?" Dave asked. "Why does she always run away?" Carolyn countered with her own question: "Why does he always attack me?"

After three decades as a marriage and family therapist at Charis Counseling Center, I've seen this pattern hundreds of times. The truth is, Dave and Carolyn weren't choosing to behave this way. Their bodies were hijacking their ability to communicate.

Your Body Treats Conflict Like Physical Danger

When you and your partner disagree, something remarkable—and problematic—happens in your nervous system. Your body can't distinguish between an argument with your spouse and a physical threat. Research from the Gottman Institute shows that when your heart rate exceeds 100 beats per minute during conflict, you literally lose the ability to hear what your partner is saying, no matter how hard you try.

This physiological response, called "flooding," triggers a cascade of changes in your body. Adrenaline surges. Your heart pounds. Blood flow redirects away from your prefrontal cortex—the part of your brain responsible for empathy, creativity, and rational thought—and toward your muscles, preparing you for physical action. Studies tracking couples' physiology during arguments have documented these changes: increased cortisol, elevated blood pressure, and a dramatic decrease in the ability to take in information or problem-solve.

The result? You become either a fighter or a fleer.

Fighters, Fleers, and the Perpetual Chase

In my years of counseling, I've observed that people tend to fall into one of two camps when conflict arises. Fighters engage immediately. They want to address the issue right now, push for resolution, and keep talking until something gets decided. Their adrenaline drives them toward confrontation.

Fleers do the opposite. They instinctively withdraw, needing space and time to process before they can discuss difficult topics productively. Their fight-or-flight response tells them to retreat, to protect themselves by disengaging.

Here's what makes this so destructive: a comprehensive analysis of 74 studies involving over 14,000 participants found that the demand-withdraw pattern—where one partner pursues while the other retreats—is strongly associated with relationship dissatisfaction, depression, and even divorce. Neither style is wrong, but when a fighter marries a fleer, you get what I call "the perpetual chase."

The Science Behind Why You Can't Just "Communicate Better"

Dave was a classic fighter. When he felt disrespected or unheard, his body flooded with adrenaline and he came out swinging—not physically, but verbally. Carolyn was a textbook fleer. The moment Dave's voice rose, her heart rate spiked above 100 beats per minute and her body entered a state that made productive conversation neurologically impossible. She wasn't choosing to "give him the silent treatment." She was physiologically overwhelmed.

What fascinated me as we worked together was discovering that both of them were actually trying to protect the relationship. Dave fought because he cared so deeply—he couldn't stand unresolved issues festering between them. Carolyn fled because she was terrified of saying something destructive in the heat of the moment. Both were operating from good intentions, but their conflicting biological responses kept them trapped.

Research from UCLA's Andrew Christensen—one of the pioneers in studying this pattern—found that withdrawal by men consistently predicted declining relationship satisfaction for their wives over time. The silence wasn't neutral. It was corrosive.

Understanding Your Pattern Changes Everything

Once Dave and Carolyn understood their physiological responses, everything shifted. Dave realized that when Carolyn withdrew, it wasn't rejection—it was self-regulation. She needed time for her nervous system to calm down before she could access the empathetic, rational parts of her brain. Carolyn learned that Dave's intensity came from passion about their relationship, not from a desire to hurt her.

Armed with this knowledge, they created a new system. When conflict arose and Carolyn felt herself flooding, she'd say, "I need 20 minutes." Dave learned that the Gottman research recommends at least 20-30 minutes for the stress hormones to dissipate from your bloodstream. During that time, Dave would journal his thoughts instead of pursuing her. When they reconvened, both were calmer and capable of actual conversation.

How to Apply This Today

1. Identify your pattern. Think about your last three disagreements with your partner. Did you push to resolve things immediately (fighter), or did you need space before you could talk (fleer)? Understanding your default response is the first step.

2. Share your pattern with your partner. Have this conversation when you're NOT in conflict. Try language like: "I've realized that when we disagree, I tend to shut down. It's not that I don't care—my body gets so overwhelmed that I literally can't think straight. I need time to calm down before I can have a productive conversation."

3. Create a time-out signal. Agree on a phrase that means "I'm flooding and need a break." This isn't avoidance—it's regulation. The key is committing to return to the conversation after 20-30 minutes.

4. Monitor your heart rate. If you have a smartwatch, glance at your heart rate during disagreements. When it exceeds 100 BPM, that's your signal that you're flooded and need a break. Your partner isn't the enemy—your physiology is working against you both.

The beautiful thing I've witnessed in couple after couple is this: when both partners understand their conflict styles and work with their biology instead of against it, the perpetual chase ends. Fighters learn to give space. Fleers learn to reengage. And both discover that conflict doesn't have to mean disconnection.

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