What to do when your best friend is cheating on her boyfriend?

[madison]

My best friend Sarah was looking at our other best friends, courtney's, messages between her and her ex on Courtney's Facebook account. The reason they broke up was she found someone else, Chris. So while Sarah was at it she was looking at some other messages. Courtney is dating two other guys. So in total that's three guys! She has kept it from us and we don't know what to do now thy we know her secret. Please help. It will probably be very awkward when were hanging out and we don't know how to approach the situation.

[Nick]

Stay out of it that's not your place.. Nor your relationship....this is how you lose a friend