My boyfriend loves me I know he does, we have been together a while now and he told me that he knows that I am the one that he wants to marry and that makes me feel good. The problem is that when we first got together we had sex every now and then when the mood was right and now he does not want to have sex at all. He says that he's just not that into sex and that he wants to wait til marriage like he has always wanted to do and because it's the right thing to do. We are both Christians so I can't argue, but I'm scared that there may be another reason behind it. I don't believe he would cheat on me because I know he loves me and he is the last person in the world who would ever hurt me, it's just I feel like it's me and when I say something about it he just says the same ,"It's not you, I just want to wait and I don't see the big deal, it's not even an important part of a relationship." should I be concerned or happy that he's like this, I'm so confused. It's not just me he said he tried it with his ex's and they wound up cheating on him (all of them actually).