I'm going to try to be as honest as possible about the situation.

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On Valentines night my fiance was away at a funeral for his best friend in Scotland (a good way away from where we currently live). I took myself to a local bar for a drink to cheer myself up (the guy who died was going to be his best man next year at our wedding, I couldn't go due to work commitments and was feeling shitty for all these reasons combined). It's a bar a close friend owns, and a wine tasting was happening. I went straight to sit at the bar with a couple of other regulars who know the situation with my fiance  and were sympathetic and didn't demand I talk about it too much.

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A guy I used to know quite well, but haven't seen for a number of months was apparently at the wine tasting (I didn't notice him and his boyfriend as I came in). On the way to the toilet he said hello, I said hello back and assumed he went to the toilet, he claims he stood behind me waiting for a conversation. I didn't see this, I wasn't really focused on him. I was quite grateful he'd left me to it (or so I assumed) as conversation with him can be quite intense. 

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He's since sent me messages saying how rude and awful I was to him on this night, and complaining that I didn't congratulate him on him being coupled up on Valentines day. I've held my ground saying I wasn't in a good place, and wasn't in a mood to talk. He's told me how selfish and disrespectful I was being because he wanted to talk to me, and that i had humiliated him by not speaking to him more over the course of the evening. I lost my patience and told him I didn't owe anyone my time and conversation, and that it was telling that he hadn't even bothered to consider if I was ok, ask where my fiance was or find out if something had happened. I asked him why everything had to be made about him and his pride,  

&amp;#x200B;

I know i could have been more enthusiastic to see them both, but I wasn't in the mood and these two really do make it all about themselves whenever I'm around them. Given the situation I feel like I was justified to not really want to spend Time around them. Anyway - the texts since have called me an arsehole, a bitch etc - how correct is this guy?