Wasn't sure where to post this, sorry, but am worried about my psyche, I suppose, and the way I relate to people.
I have always been insecure about whether people like me, probably due to bullying at both primary and secondary school. I have always been ok though and had a few close friends from different stages of my life. Not someone to have lots of social acquaintances and I much prefer one to one situations to large groups.
Anyway, my issue is that I have a colleague who I would consider as quite a close friend. We have the type of friendship where we take the piss out of each other and joke about, which is nice for me as I don't usually have these type of friendships.
Two things have happened lately which make me worry about my mental state! Firstly, on Friday was our work summer party and my colleague and I were being 'rude' to each other as usual. I was quite drunk and at one point I took it a bit far and called her an 'ugly bitch'. It was a joke, she was totally fine about it, was laughing her head off and just called me a 'rude bitch' back. But - this is the weird part- I then got really upset, started crying and apologizing and saying stuff like 'I don't deserve to call you things like that'. My colleague says I was also saying 'I'm a terrible person' and stuff like that.
Then today my colleague came in upset because of a row with her boyfriend. She said she didn't want to talk. The thing is, I feel really awful about the idea of her being upset, I wish I could cheer her up etc and am having to stop myself from texting her to ask if she wants to talk etc.
What the hell is this? I know this isn't normal- I feel as though a 'normal' adult would brush these things off, but I can't. Can anyone advise on what's wrong with me and what to do about it, please?