Is NOBODY wrong in the post ? POST : This will be a long post, also spell errors

So me and my girlfriend has a long distance relationship and we see each  other like every other weekend. This last friday I was supposed to hang  out with a couple of friends at home and drink some beers and just talk. Later that evening they say that they are going out to a club near by and I follow them. At this point my girlfriend is hanging out with her  friend which is also my best friends girlfriend, and they are at the  same club that we are suppose to go to. We find out that we are going to  the same club just as I started walking with my friends to the club that they are at

When  we get there I am excited to see my girlfriend and im going in for a hug her and kiss her for a bit before I turn around and greet her friend  with a hug, and everything seems fine. We dance for a bit, we go out  and smoke, and talk in the smoking area. And her friend seems genuinely  glad that im there and also that there is no problem with me hanging out  with them. I tell them when I see them that im leaving in 30 minutes  and show them the app showing the time table for the bus

Around  30 minutes later when im supposed to take my jacket and say goodbye, her friend also goes to the wardrobe to pick up her jacket and seems really annoyed. My girlfriend says that im about to leave and that they  will hang out just like before, and dance together. Her friend doenst  listen and picks up her jacket and say that she is going home. We ask  why and she doenst say anything. We tried talking to her and calming her  down and ask whats wrong she doesnt say anything other than that she wonders why we planned this in advance without telling her, but the  thing is that we didnt know the other person was going there before I  was almost there. When we got out of the club it all escalated when she  went from quite annoyed to crazy when she stopped and started screaming  "why dont you talk to eachother?" and she sounded so dissapointed

Later, when I asked her boyfriend (who was also angry after) why she was so upset, they started to write that we left her out and didnt talk to her at all, that we ignored her and turned our backs around to ignore her, and also that i made a inappropriate joke. The joke was that she and my girlfriend was supposed to sleep at my girlfriends home, and then I said "oh, you are stealing my spot in her bed", AS A JOKE. And she seriously said after, that the joke was inappropriate and that she was really sad  about it. The thing is that both me and my girlfriend thought that nothing was wrong, and her facial expression looked genuinely glad and  normal (no issues) and also that she didnt say anything at the club, she  could have said to my girlfriend that I was being wrong and that she  was upset but she didnt say anything. Now after the event her boyfriend  says that we're suppose to see that she was sad and upset.

AITA?