One of the most common reasons people stay together is for their children. Depending on your unique situation, this might be the best reason to stay together, or the worst.
We're told over and over again that we have to stay for our kids; that children from "broken homes" (I hate that term) do less well in school, are damaged, and grow up to have poor coping and relationship skills. So we try. And we try harder. We bend ourselves into pretzels trying to make this square peg fit in this round hole come hell or high water, because if we don't, our children will suffer, and we will have failed.
I call bullshit.
The Divorce Survival Guide Podcast