my 1 guy friend that i consider my best friend, he is dating this girl and i had found out that she is cheating on him. and i ended up telling him. he was kinda relieved because he doesn't want to date her anymore. he wants to confront her about her going behind his back but he doesn't want to have it thrown back in his face cuz he had kissed another girl, but they weren't dating at the time. and u know how girls can be and turn it around so they can make it the guys fault. lol

i dont know what to say to him so he can get out of it and maybe still remain friends w/ her and do it a nice fashion. any suggestions????