Some girl literally TWERKED on my bf while I was RIGHT NEXT TO HIM

This is pretty much a vent/story time since no one here knows me irl and it keeps replaying in my head. There are a couple people in this story I don't wanna name drop so here are the key players in the story and how I'll refer to them:

bf - my boyfriend

twin - bf's twin who I am also good friends with

rm - twin's roommate who I met for the first time (she was very nice)

E - the antagonist of the story lol

I was invited to a Halloween party on the 2nd which I was pretty excited for because not only do I enjoy Halloween, but some people who I haven't seen in a hot minute were there too. bf, twin, and I met up with rm and we all got ready together (I was a clown (my pfp) for anyone wondering). At this point I was super excited because the vibes between us four were great and I had just gotten my septum pierced that morning.

But then immediately when I got to the party the vibes were a littttllleee weird. E opens the door for us and greats twin then turns to my bf and goes "bfffff" (saying his name) and gives him a hug. At the moment I don't think it's that weird because I know the two have known each other since middle school and only really talk at events/gatherings. She proceeds to turn to me and give me a hug as well, so again, didn't think it was too weird at the moment.

A couple of minutes pass and I could tell E was VERY drunk. She was mostly mingling with other people and the four of us went to catch up with a couple other people. At this point, everything is still good.

BUT THEN some more times passes, we're back in side, and all of us are just talking and watching the party. E comes up to us and says something I can't recall, E's friend, who has been around her all night, also follows and approaches us. A couple minutes before this we saw her backing up on people and twerking on them, which is like whatever because you're obviously drunk I guess. But surely she wouldn't come up and do it to my bf who she KNOWS I've been dating for TWO YEARS and I am standing less than A FOOT AWAY FROM.

Then she grabs his hand, lifts it up above her head, turns around and backs up, then TWERKS ON HIM!!! WHILE IM RIGHT THERE!! In my head I was like "Whaddaaa healllllll"

My bf did the right thing back backing up, kinda trying to push her off and literally said "no thank you". I was so shocked that she would actually do something like that that I couldn't bring myself to say anything because not only do I haaatttee conflict but I didn't know the host of the party very well, so I didn't want to cause a problem. E's friend grabbed them and pulled them away. The whole rest of the party I wanted to be like "what the hell is wrong with you?" but I decided to keep the peace.

My bf, twin, rm, and I talked about how really weird that was. I learned from twin that apparently E had done it to at least one other person in a relationship, so they planned to talk to E about that.

E for the rest of the party continued to be the drunkest one there and acted like nothing happen.

This has been playing in my head along with a lot of other weird instances that I thought were weird in the moment but never vocalized to anyone until after this situation. My bf and I have A LOT of mutual friends and none of them would ever cross a line like that while drunk, so I feel like this says a lot about E as a person. I honestly did get weird vibes from E but I wanted to like her because she is twin's best friend, but it does seem like twin did not like this behavior either. I hope twin talks to her soon and I hope she at the very least apologizes because like 2 days have passed and she hasn't said anything.

I WILL NOT FORGIVE HER even if she does say sorry, but I still feel like me and my bf are owed one. The more I think about her the more I dislike her and I refuse to go to any events involving her unless its someones birthday or something. I have a lot of big feelings about this that I wanted to share to strangers on the internet lol

Thanks for reading this far!