Yeah but a straight man isn't fucking his homeboys, paying their bills, buying them gifts, and raising a family with them.
It's not about ridicule, it's about betrayal. It's about the fact the man has came through for a woman many times over, listening to her problems and dealing with her shit.
Then the one time he had enough, she throws it in his face like he knew she would.
Why would a man want to find out that the woman he's with don't care about him the same way he cares about her.
It's not like he didn't see the signs of the basic inconsideration or lack empathy that has been reinforced.
Betrayal is Betrayal no matter who it comes from. You take that risk with people in general