PLEASE keep this anonymous...
And I apologise for the length but it's, inevitably, complicated.
So, I started university last year and, through an old friend in the year above, met someone, and I think it's safe to say that we
hated each other almost as soon as we met, I thought he was arrogant, harsh, unreasonably rude (and ridiculously condescending about the fact that I was a fresher) and we were completely unable to hold a civil conversation with each other.
I would actually feel disgust whenever he was around, it's hard to explain how strongly we disliked each other. Any conversation we had would inevitably just be a load of thinly-veiled jibes and insults. None of my friends had that much of a problem with him (though they all agreed he was a bit of a **** most of the time), I was the only one who seemed to be part of this mutual hatred thing between us.
Then at the very end of last year he started talking to me online one night as though I were actually a human being, we were still communicating entirely in one-liners and jibes, but they suddenly seemed a lot more good-natured. Of course it only lasted for about one night, the next time I saw him we were back to radiating hate vibes at each other, but it made me almost curious as to what exactly was going on with him.
Then this year, he's come back as almost a different person over the summer, at least in regards to me and the way he treats me - we talk sometimes online and the conversations are light-hearted and we actually have things in common.
Every time I've seen him we seem to be heading in a different direction, and I've realised recently that I'm actually quite attracted to him (even when I hated his guts I kind-of thought he was sexy). Then we went out in a group of friends on Saturday night, towards the end of the night people were daring people to kiss each other, and we got dared to kiss, which we did, and I ended up kissing him properly instead of the little kisses people had been giving each other (I intitated it). I could tell he wasn't expecting it from his reaction but after a few seconds he kissed me back, properly.
And now inevitably I'm not sure what to do, he's a bit a slut and often gets with random girls. Don't worry, I'm not deluded enough to think that I'm different from the rest, but there are so many unexplainable levels to our relationship, our friends' reactions to our kiss were pretty shocked and I asked someone afterwards who said it was because they hadn't realised we'd gotten over the hatred that much!
I saw him the day afterwards and everything was normal between us, but I didn't really engage him in conversation as much because I knew our friends would tease us about it if they got the chance. I know he has difficulty opening up to people and doesn't like relationships because I talked to him about it when he was with his last girlfriend, and he's said he's torn between having fun whilst he still can and actually finding someone he can be with.
If he asked me out I know I'd say yes (I've recently gotten over a bad end to a relationship and am now in the position where I know I'd rather be with him than back with my ex), but at the same time I'm neither expecting him to ask nor to want something like that, especially with me, I'm not like the other girls he goes for in looks/style/anything really (let's just say I'm a tad more alternative, and he likes the opposite, usually).
I won't see him again until next Saturday (he's away for the week, though he did start talking to me briefly on facebook yesterday by insulting me and then proverbially running away, i.e. going offline) and I'm not sure how to act when I
do see him... so any advice would be nice, I feel a bit stuck and I'm not really sure I want to involve any RL friends in this as they're all mutual friends. I'd quite like this to go a bit further, if I'm honest.
Apologies for the tl;dr but it's not a simple story...
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My life is slowly turning into Pride and Prejudice...
So get to work! 
Jeremy Paxman.
