If you turn him in, she will always see you being the bad guy, instead of seeing OM for his true colors. Who knows if it would end their A if you turned him in? One thing I think she would do, is take up for him. They would blame you for any trouble that was caused him.
If you do as Artista suggested, then it won't be about what you've done to him.....but what he's done to her. See what I mean?
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!
