Please can someone help me with this. I cannot get the fact that my Girlfriend of 6 yrs slept with another guy. I dream about it every night and its hard to get out of my mind. I lost my virginity to her and was not planning on being with anyone else. She slept with another guy and it was not because our sex life was bad. while we had a 1 month split up and then she comes back to me and lied at first but I found out and then she told me everything as far as I know. I want to forget and forgive but forgiving is hard and forgetting is impossible. Anyone know how to cope with this I know what the guy looks like I cannot get him out of my head or the fact of what happened, I use to trust her without a doubt and now its so hard to think she is telling the truth. I know she would never do it again but and everything would be great if I can get over it but I cant. I feel betrayed and Used.