I'm 34 yrs old, me and my gf live 5 hours from each other so it's not often we get to have sex. Lately I have been having problems keeping an erections during sex and it's causing her to feel like it's her fault and she thinks im not attracted to her. I love her and I know she loves me, but I feel like this is hurt our relationship. Last night she said she doesn't think she's good enough for me and that if I found someone better looking that I wouldn't have this problem. I don't know what to do.