Not attracted to my boyfriend--is this a problem?

Sounds like it's time for a talk with him. Tell him if he doesn't improve, then you will have to break i t off. If he likes you (loves you, idk if he says that, u didn't mention that..) then he should change. If not then you were just in lust. If he doesn't change at ALL break it, if he improves just a little, keep it and see how it goes.