Is NOBODY wrong in the post ? POST : Sorry for my poor english knowledge and formatting. Writing on mobile.

Every Thursday and/or Saturday I rehearsel with my band in the basement of our favourite bar.
I always come home at 8:45 pm after rehearsel.
Today there was a DJ who played some decent stuff we're into. I would have come home early anyway If my girlfriend wish to but she wanted to come too, to stay and drink, party, and have good time.
So she came at 10 pm and immediately texted me across the room that she wouldn't have come if she knew that there were so many people (she suffers from Borderline Personality Disorder and has sociophobic symptoms).
She started conversating with strangers anyway and seemed to have good time. She was laughing, talking, and didn't bother at all that she didn't know those people.
At around 2 am she wanted to go home while I was in the middle of a darts game. She insisted on going right now even though the game wasn't finished yet.
I told that we can go home when the game is finished.
So we stayed for another 40 minutes or so when she texted that she wants to go now. She was pissed. Really pissed.
She said in a reallys disparaging way that I can stay longer if I want to and that she goes home (she always does this if something doesn't go to her plan and cries about it later).
I - knowing her - knew of course that she wanted me to come with her so I paid our bill, dropped out of the game and told her that I am ready to go. We went outside where she said that I am shall go away. I tried to talk to her but then she ran off in the middle of the night. I couldn't find her and she wouldn't answer my calls. I went home and waited for her to come which happend about 30 minutes after.

So AITA? Did I do anything wrong in this situation?