Virgo man disappearing

I am a Scorpio woman, and I am very interested in this Virgo man. The weird part is that we have never really met, he went to the same college as me for a while, & I knew him from around the campus so I added him on facebook & we began talking (although at the time he had moved back to his hometown, which was an hour away).

A little while ago, I had a boyfriend, & we would still talk & he began seeming interested in me, but he knew I was in a relationship, so it didn't last long. He soon disappeared from the picture for a while, until I broke up with my boyfriend; a couple months after that, he randomly messaged me on msn, saying that he was drunk & he missed me. I said I missed him too, & then he said "why is it so weird falling for a girl you've never met"; I know that Virgos usually aren't the type of signs that take risks like that, so I thought he really liked me. He said he would try really hard to come and see me that coming up weekend, & so almost everyday we would text message each other. Saturday came & he said he ended up having to ref a team for something, so I wasn't too insulted, & he said next weekend for sure he would come. So we would continue to text & Friday came and he never texted me that day to tell me he was coming or not. So that night I messaged him and said that if there was something bothering him or that he was too shy to come and see me, that he should just tell me, and that I wanted him to reply, but he never did.

A couple days later he's talking to me again but he completely ignored that fact that I left that message, and started flirting with me again, almost like he completely forgot. So I brushed it off.

I think I was falling for him so hard that I almost convinced myself that I should go to the same college that he decides to go to next year, and he seemed to pick up on that.

This weekend he's supposed to come up but he's acting weird again. I don't really understand.
He's always asking me what I'm going to do if he comes down and I don't really understand that. I know Virgo's aren't usually sexual people and plus he's very kept to himself so I don't think he's meaning what I think he is.

Another thing is that he keeps asking me if there's anything exciting happening in my town when he comes down, or if I have something planned; I kind of do, but I'm also insulted. Why does there need to be something exciting going on for us to hang out together? He also invited along one of my friends, I guess so that maybe he wouldn't feel so awkward?
The friend that is tagging along with us asked him why he is coming to see me and all he said was "because.., ask her" and he wouldn't say anything else. What does that mean?

My question is, what's with all his disappearing behavior? I know that usually if a Virgo wants to do something, he will. So after the first and second disappearance, he still keeps on texting me and coming back, what's with him? and since it's our first time meeting, what can I do to make things feel comfortable? How are you supposed to act around a Virgo anyways?

Can you help me out?