Search Results: guys with big egos

So this guy friend of mine and I had been talking a lot this past summer and we seemed to like each other a lot: talking every day, would always want to randomly meet up at school together to have lunch just the two of us, flirt a lot but never really got to the officially talking stage, went out on dates, kissed or anything. It was just mostly flirting and talking everyday before I went off to a summer program for a month. I come back and even before the summer program we had stopped talking as much as usual when I noticed he had been flirting and talking with almost every girl in this school organization we are in. Naturally I was like WTH? I completely felt like a dumb ass and assumed I had read into everything too much and of course I did NOT confront him or tell him anything because after all we weren't officially anything. I was thrown for a loop though because I had been so sure he wanted to date me but I assumed I had been wrong before and therefore I stopped answering as much to him or giving him much attention and stopped flirting with him. He would occasionally complain teasingly that I never answered him anymore and I would teasingly say "well you have a lot of girls talking to you already so you'll be fine." He's kind of an attention whore and I assumed any interest he had in me was so just some other girl would like him. So we pulled away but the times we see each other now we are still good friends and seem to still like each other even though he flirts with EVERY girl. He hasn't dated anyone that I know of. I'm about to move to a different city to attend med school in 4 months and every time I see him I'm tempted to just spark something up and just hook up for a while meanwhile I leave off to med school. I've been hesitant to do it though because he has such a big ego already and I have the slight fear he'll be a snob about it. Should I go for it? And if so how do I go about it given the fact that we've been friends for a long time?

I'm really in trouble lately.
I met a guy when I started working at a new company, and had feelings like I never could have for anyone.. we talk all the time, we fit really well and spend all our time together.
He's always sweet and intimate when we are alone, in a genuine way, I think.
But then we go to the office and each day he FINDS A REASON TO BE AN ASSHOLE, when I swallow my pride and apologize for something I don't even understand.. and he IGNORES me, tells me to fuck off, not talk to him, BLA BLA.
Big drama queen.
Later he kisses me and asks me to be with him. Jesus fucking Christ.
Drives me insane, he says I make him really mad too, for reasons he doesn't know either.
What's the reason? IS HE REALLY AN ASSHOLE WHO JUST CAN'T STOP BEING AN ASSHOLE?
Who's ready to blow this over some ego manly pride-infested attitude..
What to do?