Divorce is a whole different game when you have kids together. If you're both dedicated to co-parenting, then you're going to regularly see each other, and finding ways to be civil and respectful is key.
While finding a way to work together is even more difficult if the divorce took place because of an affair, it's still possible if both ex-partners are laser focused on the well-being of the children.
"AITA for giving my ex wife a large amount of money I won despite the anger of my gf?"
"I recently won a ‘fuck you’ amount of money. I won’t say exactly how much but it’s in the millions. It makes me feel funny even typing It’s enough to change the life of myself and my family."
He recognizes his past wrongdoings, and the ways his ex has buckled up to co-parent, and doesn't take it for granted despite breaking the marriage.