Fighting for it or letting it go?

[Ice_25]

Hey everyone,
I have a love problem. It may not be the biggest, but I really don't know what to do and I'd love to hear some advice from you.

There is this guy I like. A lot.
He's been on a student exchange with a friend of mine. They got along great and from the beginning she thought him and I could make a great couple, but he had a girlfriend at the time. It's been two years since then.
We met when we went out togehter about 1,5 year ago. He was single then, he broke up with his girlfriend, and I think I can say he was pretty interested in me from the moment we met. He talked to me, danced with me... The problem was, I didn't like him as much that night. I had some other guy in my mind, so I kind of blew him off. And I couldn't feel sorrier the following week.
I kept wishing I'd meet him again, but since they came home form the exchange, my friend unfortunately doesn't hang out with him so much anymore, so he's not really in my closest friends circle. I still got to meet him once every month or so and we always said hi and chatted for a while. And every time we did, I liked him more. Eventually I added him on Facebook and started messaging him from time to time. He always replied, but never took the iniciative. I could totally understand that, if I felt he wasn't interested in me, but the thing is, when we're togehter, I have his full attention, we have a great time, we laugh, we have chemistry - one night we talked in the middle of dance club for couple of hours and my friend said she was sure, by the looks of our body language, that we were telling eachother how much we like eachother. But we didn't. (I'm not very opened person and I can't really talk about my feelings.)
So, the story countinues. We were messaging in January and I kind of gave a hint he should ask me out. He politely explained that he's just too busy studying. I felt horrible, but at least I knew where I stood - he's just not that into me. I decided I'm giving up on him and move on.
Here's the twist. In February I went out of town with two of my friends - we had an amazing weekend, winter sports and girls fun. And there he was, with his friends, in the same pub, in the same mountain resort, the very same weekend. I go there often, but it was his first time there. Coincidence much? I felt awkward at first, but we endend having a fantastic night. Chatting, all of my and his friends getting along great, we partied untill 4 am... Me and him danced togehter and locked our eyes across the dancefloor a lot. During that night I found out he's kind of dating other girl, but it sounded like she's not that interested. The night ended at our place and I fell asleep in his arms. In the morning we both agreed we should hang out more and give eachother couple of meaningful looks. We exchanged one message the following week, and I ended it kind of harshly, I didn't want to get too hurt.
Because, I felt pretty vulnerable and confused - when I decide to forget him, I get the most yet? Plus I knew I couldn't really do anything, 'cause he's dating that other girl...
It's been couple of months since then and I'm torn. We haven't seen or heard from eachother. I'm getting mixed advice from my friends. Some say I gave up too soon and that I should definitely message him and see how he's doing, maybe even tell him how I feel. Others say that he's really not that into me and if he was interested, he would message me himself - but the friend, who knows him the best, says he's not really the best at picking girls, plus he'd kind of shy. I don't really know what's going on with this other girl, but it seems like they're not in a real relationship.
The thing is, I really like him. I tried to forget about him and move on, but I keep thinking about him. I had a couple of flings in the meantime, but no connection like I have with him. I think we could make a nice couple, we share interests, we both seek serious relationship. We never hooked up or even kissed, but it seems like we both know we don't want any mess or emotional risks, since we both feel there might be something more than just one night stand in store for us.
So,
Should I leave it to fate and wait for another "coincidence" in a way that, "if it's meant to be, it'll happen"?
Should I message him casually, just to say hi and remind him of myself - will he like some attention or will it just turn him off?
Or, should I just forget about him like I decided couple of times before?
I have no idea what to do, I just know, from how I fell when we're togehter, that letting him go could be a mistake.

Thanks in advance.

[Stay 2gether]

i think you should just tell him how you feel and see what he says because if he is shy like your friend says and you are too yall both could miss a great oppurtunity! hope all ends well!