*Almost* Boyfriend & I are falling out, losing what we have? ADVICE.?

[Alias]

We are 19. I consider relationships to be a serious thing, something I dont take lightly. If I go out of my way for a guy, I really am interested in him and it usually takes me a while to fall for someone. So about half a year or so I introduced myself to this guy who I had seen around school before but we never met. It was on facebook, not ideal but it was the only way. He was gone all summer so we didnt move past a casual hey whats up, blahlbah for 3 months. Then he came back in september and we met for the first time. From then up until a month ago, we saw were friends and saw each other here and there sporadically, getting to know each other. We have A LOT of similar interests. I enjoy my time around him. I have always had a crush on him, it just intensified as I got to know him more. I never knew how he felt until a month ago when I was at his house and he flat out asked me if I liked him more than a friend. So awkwardly, and shyly I admitted I did, I guess he felt the same. He said he has been trying to get to know me, etc. We kissed, which led to making out and other things but never sex. Since then, we only saw each other briefly a week after because he had to give me my necklace. He hasnt ever had a girlfriend and girls dont go after him. He isnt a chick magnet or a player by any means. Im not sure if he likes me because he likes me, or if he likes me because I am the first girl who has given him real attention and he likes how i look. I dont want to sound crappy like that, but I am just scared of getting hurt I guess.

The problem is, i am at college all week and can only see him on weekends. Which would have been okay, but for the past month he has been out of state with his family for a family job and has to stay there for another SIX weeks. I am beginning to question what we have, if he likes me, if I am living in fairytale land, if he even thinks of me, etc. There are days when we text for a few hours, like twice a week. He got snapchat last week and I think he got it to stay in contact with me but idk. We did it a few times back and forth but he didnt respond to me yesterday and now today he responded later tomy text saying his snapchat broke or something. I just feel like we are losing what we have or what I thought we had. He seems SO interested and nervous at times towards me, like when he is with me he gets really nervous... but then he goes MIA and I dont hear from him in a few days. I dont understand. It makes me feel like I am wasting my time, hoping for someone who doesnt care.