Coming from a woman's perspective, I really don't have an issue if my boyfriend gets soft sometimes. Please don't take it so hard on yourself; just talk with her and tell her how you're feeling, and she should be very understanding. It really doesn't reflect anything about you or your capabilities; it just happens. She's not going to think you're an imposter... believe it or not, most women know there's a lot more to a guy than his penis!
The faster you realize that, the better off you'll be.
