There are excellent responses on this thread, I would just add a different approach to what was already been said.
Men are build to respond to real life-threatening high intensity situations with a rush of adrenaline. If you are in a physical fight, or if a animal attacks, you are able to fight or escape. It is fast, it is short, it is intensive and wears you down. You need time to recover from the experience.
Women are built to respond to social stress, like babies crying and arguing with other women. It is a low intensity event, prolonged and does not wear them down.
So, when a man marries a woman he finds out really quick how arguments work between a couple: when things get heated, the guy starts boiling out and goes away. He needs a break to recover. She doesn't, she will give him 2 or 3 minutes, just out of pure masochism, and get on his face again. She is relentless and is actually enjoying the drama, he is getting drained.
This all comes down to the biological mechanisms, for the woman it feels like a baby is crying, for the man it feels like being attacked by a bear, continually.
The guy eventually develops somekind of PTSD. Instinctively he starts avoiding subjects and arguments, because there is no winning in these arguments, just abuse.
You know these men by the look in their eyes: broken men. Like the picture below.
