Last summer I was out of town working when my girlfriend hung out with one of my friends. This "friend" of mine liked my girlfriend and I didn't trust him at all. I knew something was going to happen. The day went on and it turned out that he was touching her and he tried to kiss her. Later on I learned that she liked him, and she leaned in to kiss him when he tried to kiss her, she ended up pushing him away. Over many months with much talking and communication, things changed. But I am still mentally scarred because she was actually thinking about kissing him. Whenever we have small arguments somehow I bring this up. It is constantly on both of our minds. She has said she is sorry and realizes what she has done, but now she starts to cry and become worried that she is going to lose me whenever this happens. I don't want to lose her either, we both love each other a lot. She has no feelings but hate for this "friend." This just keeps coming up and will not go away, I really want to fix this and make this work. This is killing us both, I have talked to many people about it and they don't have much to say. Please help.