How to deal with cheating friend?

My friend has been cheating on her lover. Of course, its none of my business, but I can't stand that immorally bad. (Her lover isn't innocent type either in his past, but whatever. )





I realized these my options:





1.


approach: Ignore her personal life and do nothing.


challenge:


My EMOTIONS FEEL WEIRD even if she stops talking her actions.





2.


approach: Confront my friend that I no longer want to be her friend


challenge: Its hard to break this friendship since we been very close friends. We always been there for each other during hardest times.





What approach do think its better and how would deal with its challenge mentioned above?How to deal with cheating friend?
approach???? are you ok??? its your friend you are talking about. if you dont like it, fine. let her know. its ok. not straight forward, just say you dont feel comfortable about it. and you would appreciate if she keeps you out of it. and that what you do- stay out of it. you dont need to be involved and the less you ask about it, talk about, and approach it, the less you know. be a friend.How to deal with cheating friend?
I would do number 2 cause i have no respect for cheaters and dont want to be associate with someone like that.
Confront her about it and let her know exactly how you feel. Remind her that you don't need to know all these details. If she responds well to you personal feelings you shouldn't have to end this friendship.
if anyone is at the point where they are cheating they shouldnt be together end o story x.x
It is none of your business. It is hers. Your interfering with her personal life will cause resentment. If she is your true friend, be a friend, listen, learn and love. She should already know her views, as well, as you knowing hers. If you cannot be a friend to her any longer, end it. You cannot change her, only yourself.