Low Testosterone?

My SO and I have only been together for a few months, so since we're in the love bird stage of our relationship shouldn't he be wanting to have a lot of sex? He's only been with one other person besides me, and it was when he was in high school and now he's about to graduate from college. He told me he's never masturbated, and that concerns me. I feel like I have to pressure him into having sex, and that he honestly could live life without ever having sex. Is something wrong with me? Him? He just honestly seems to have no sex drive. Please comment if you know why, because it's making me feel terrible and a girl needs some loving! ?