Y is that men almost never accept a cheating partner but women do ?

Apparently men forgive cheating easier than women do. According to a psychologist I was listening to.

Clearly you haven't met many men. Some men stay with cheating partners, as do some women.

Because when a woman cheats its usually very emotionally driven and it means a lot to her. When a man cheats its usually because his woman is trying to control him by withholding sex, so he just goes and finds another hole to have fun with. It means nothing to him, its just a warm, wet hole to use for an orgasm or two. Usually, after the man cheats, the woman realizes that her attempt at control and manipulation is actually what drove him away from her.

Good question. But times are changing. Women don't need to be so submissive anymore.....