It could be the accident, it could be that he’s become so used to masturbating that he can’t reach an orgasm from intercourse, and it could also be a combination of the two. Can this situation be fixed? I don’t know, and I’m not even sure if it’s possible to know. Maybe with time he could learn to have orgasms during intercourse, but there’s no guarantee of that. Now I get many letters from women who have problems with their man masturbating to porn, but most of these men don’t have a built in excuse the way your fiancé does. It’s never about the woman, it’s always about the man in these cases but I understand that women begin to question their own value when their man masturbates so much. But here you have a psychological crutch because you could say to yourself, it’s because he had an accident so it’s no one’s fault. If you can do that and like everything about the relationship, then that’s what you should do. And maybe once you take the pressure off of him having orgasms during intercourse, the situation will fix itself. But if you can’t, if this really bothers you, then you should say you’re sorry and move on. There really are no other paths for you. You can’t count on a change down the road, so either you decide that you can live with a sex life the way it is, or you can’t.