Would you give your significant other cheat passes?

A close friend of mine does this. She is a housewife and he makes all the money he’s very attractive and he does his thing I guess. So instead of her losing him by settling boundaries she would allow him a few days out of the month to cheat 🥺. Idk why she hasn’t learned from this. Being as though she gave him the cheat days he came home and told her that he had gotten someone pregnant. I know this because she told me. She still won’t let him go and find her peace. My heart can’t see her like this anymore