I have this friend and she is my best friend and I love her to death. I have another friend who was seeing this guy for about 3-4 years. About two summers ago my friend went away to camp for the whole summer and my best friend was still in town. Well we went to this guys house for a bbq and then they went off somewhere and no one really paid attention to it. When we all got in the car to drive home by best friend tells me that she kissed him so this went on all summer until the other friend came home and then this past summer they did the same thing. Now that we're in college he comes over on occasion and they make-out and stuff and my other friend has no idea. I don't know if I should just sit and watch this betrayal take place or say something. But its kind of a "damned if you do, damned if you dont" situation... what do u think?

I would say something to the friend who is doing the betraying. Let that person know how you feel about what is going on. Maybe it will give her something to think about. Otherwise, I'd leave it alone.

Say something about it... if you're friend that is doing the betraying gets mad then let her... she shouldn't have done it in the first place, she knows its wrong. Plus you really don't need a friend that will do that with no feeling of guilt. And if your other friend finds out and then finds out that you knew you will loose her as a friend most likely. Because that also is a type of betrayal. So just decide which friend is a better friend to you, if it is the betraying friend then don't tell, if it is the non-betraying friend... then tell.