Sounds like you two might be on completely different levels. Not even enjoying masturbation is sort of alarming to me, which is bad if your drive is high. I would sit him down and talk to him about it, perhaps he's in need of emotional attachment, but not intimacy (basically referening the asexual possibility). I can relate on the flip side, I try to stick to short-term flings, and one nighters as I have an avoidant-attachment style, so my sex drive is almost always high, but I lose interest in people after only a few months. Some of us are programmed differently, so it's not his fault, but he also needs to understand that it's harming you (my attachment issue was made apparent to me after I accidently destroyed someones heart, I simply dumped them out of the blue which was easy for me, but life-changing for them, and I've since changed my dating style as a result). If you two continue forward, I wonder if he'd allow you to find a physical outlet for your needs?