Background...years ago I dated a girl who had some insecurities because she had been cheated on by a past boyfriend. I really cared about this girl and only wanted to be with her. Unfortunately, she was so insecure that she convinced herself that I was cheating on her (I never did in any way shape or form) so she went out and slept with another guy to "get back at me". After this I pretty much said I didn't want to do another relationship for a while. It sucked the way it ended because of her insecurities and nothing that I did.
Present...I have been dating this girl for about 10 months now, we are officially together. She too has some insecurities but she never came out with what they were, where they came from, etc. Well just recently she finally told me. An old boyfriend of hers cheated on her...with several of her friends! She told me this because one night we were hanging out with some of her friends and she thought, for some reason, that I was into her friend. I don't think her friend is attractive AT ALL. Plus I don't want to be with anyone else right now, just my girlfriend.
My girlfriend gets nervous/insecure that....1. I'm going to meet someone I like more than her or 2. I'm going to cheat on her. I have never cheated on this girlfriend (or any girlfriend) and I have had chances to but I didn't want to. I really care about this girl a lot; I'm not interested in pursuing anyone else.
So here's the problem, I feel like I am in the same situation again andI have no idea what to do. I feel like this girl and the old girl are totally different people so it's not really fair to assume that the same thing will happen again. But myself am somewhat nervous/insecure about it because I feel like all of a sudden I am in the same position again and last time it ended so horribly.
Advice!?