But are you happy to destroy his marriage? Do you understand the affect an affair can have on a marriage or their kids? Sure if it wasn't with you-he probably would have found someone else but why would you want to be a part of that?
Its immoral.
Imagine if you spent ten or twenty years with a man you love and trust with all your heart who you have built a life, home and family with and he has an affair and everything you have had for so long is taken from under your nose in an instant. All of a sudden you feel like your whole life is built on a lie and the man you thought you knew is actually a stranger. Can you imagine the emotional impact of that.
My grand mother had a nervous breakdown over her cheating husband. Many people have attempted or committed suicide. Are you really that self absorbed that you dont care how your actions impact others?
"Don't ask a question if you can't handle the answer".