What to do about this guy?

There is this guy that I really like. We have a lot in common and our personalities just kind of go together well. We hang out a lot and I usually cuddle with him and stuff but I'm really confused. I feel good when I touch him and it makes me feel warm and sleepy, if that makes sense. But I can't really imagine having with him or even kissing him. It's not that the thought repulses me, its just he's so skinny and I've never liked a guy like that. He's really tall but he's just so thin. He also is kind of sick and I'm afraid he can't even sustain an . And he is sort of innocent. I mean, not to a crazy extent, but we were walking around a store yesterday and he didn't know what personal lubricant was for. We're both in our late high school years. What should I do? Am I being too superficial? Please, I just need some advice. Thank you.