OKAY SO I NEED Y'ALLS OPINION ON THIS IMMEDIATELY!

Okay, so I'm with this guy who's absolutely wonderful and I love him a lot. I also think he's super attractive, sexy, and has a decent size cock. Anyways, even after all those feelings I still can't exactly get aroused at even the thought of him fucking me? It makes me feel bad too cause it's not like I don't find him attractive or anything cause I do. He just doesn't get me wet or anything and I don't know what to do about it? I don't understand why it's so hard to feel sexually attracted to someone.