Aita guyz

Am I the asshole for sleeping with my hb again while at my girlfriend’s house party and then punching the shit out of him in her drive way? Me 16m, my hb 17m and my girlfriend 19f. I recently reunited with my hb from middle school online and while we started talking again we talked about him coming down to the us where I am and spending the night in a hotel together since my “home” sucks ass and while in the hotel room we were talking and shit and then we were like making out and it escalated to something farther and then he went back to his house in Canada the next day. A couple days later he mentioned how he had 3 comic con tickets that he couldn’t use bc he’s dumb and so I went with my sister, 16f, and her girlfriend, 16f, I think technically my sister is some queer shit but idk whatever. Anyway, while at comic con I met this hot chic that looked like a character from Minecraft and I asked her out and we went out and were dating and shit and then a couple weeks later my hb was supposed to come down from Canada again but my girlfriend was also throwing a party at her house and so I just like invited my hb to the party but at the party, since he’s socially inept my hb went upstairs and sat on the couch cuz he’s bad in populated spaces or some dumb shit like that, idk he’s re-ed. And I eventually went upstairs too to sit with him once I found out where he was and again, we start making out and things go a bit farther. By this point I was very drunk and high and after we do some things we go outside cuz he has to drive all the way home and and says some stupid shit dissing me and my chic so naturally I punch him and jump on him and continue to punch him and then my girlfriend came outside and grabbed me off of him and then took my hb inside like Ho what do you think you’re doing like shouldn’t you be on my side?? Like that’s MY meat treat and you’re MY hot chic what are you doing and I literally had to walk all the way home cuz nobody wanted to bring me home for some reason. Anyways idk man everyone sucks ass I don’t understand what I rly did THAT wrong.