I've been cheated on breh. And I walked away. If my boyfriend or husband ever cheated and got another woman pregnant, I'd have to realize that now his life isn't about me or even HER anymore. His choices made it that way. He now has a forever bond with another person and while i'd be fuming, angry, upset, I am second to that relationship with his child now. So I'd have to be responsible for myself and leave. His actions reflect HIM not me. You can always find another person to love. You don't have another chance at life and you can't recapture the parent-child bond anywhere else.