My Fiance won't stop masturbating. We've been together for a year and a half. In that time, we've had sex at least twice a week, average. And he has been able to finish only a handful of times. I have begged him to stop. Tried to explain to him how awful I feel when I can't make him finish. Nothing works. Today, we had a big fight about it. Because he told me, yet again, he hasn't stopped. He tried to compare the fact that I cannot finish during sex to him not being able to. He makes me finish every time we attempt to have sex, it isn't vaginally but it still makes us both feel good. He was mad at me for not having the ability to finish while he is inside me. Something I can't help, something out of my control. He thinks that is the same despite the fact that this wouldn't even be an issue if he would just stop masturbating. Claims that if I can't, its okay that he doesn't even though it makes me feel awful knowing he is just going to do it later. We are getting married, planning our life together. What if we can't have children because we can't have sex? What if we end up resenting each other because of this? Am I wrong or crazy to think that something has to be done?