<human>: Can you condense the text into a few key points?

I have a male friend, "Alex," whom I've known for about 2 years now. We both go to different colleges, so the only time I've had a chance to hang out with him is during school breaks.

Since the very beginning from when we first met, we've always been a little flirty with each other. Initially it didn't seem like it would go anywhere, especially since I'm really good at denying my own feelings and misreading other people's signals. 
But over the last several weeks of winter break, I feel like things between Alex and me have escalated to the point where our chemistry is undeniable. We hung out with our mutual group of friends several times recently, and several of them had made comments, asking if there was anything going on between us.

Anyways, I'm just starting to realize that I'm pretty head over heels for this guy. He's not the type to talk about his feelings or the type to take the initiative either, and I'm pretty tired of waiting around wondering "Does he like me or does he not" and "Why won't he make a move already." The issue is... he just left last week to study abroad. I won't see him again for 5, maybe more, months, and I don't know if it's worth it to say anything to him now, if he's across the world.  And if I were to say something, I don't know what to say and how to do it. Over e-mail? Skype? One other thing is, if this doesn't go over well, it has a high probability of screwing over our friendship and our mutual friend group (whole lotta awkwardness). Lastly, if we did start dating, it would have to be long-distance even after he gets back from his study abroad trip since we go to school on different coasts.
<bot>: I like this guy, it seems that he might like me, and I want to do something about it, but he's really far away. What should I do, or should I just forget it?