My girfriend and i have been going out for a good two years and i have just been informed that she performed oral sex on one of my best friends.This happened last summer and we have been through a lot since that has happened. We have worked our relationship to being perfect and then i found this out.I have talked to my friend and I have forgave them both on the incident. I told my friend that I will never trust him again. But, for my girlfriend i know i still love her, but how am i supposed to trust her.Please help me on this situation, before i make the wrong decision.Thank you