So I was at a large social function this weekend, and I had an ex blow up my phone an ambush me. I'm a reformed BP and she knows it. It was under the pretense of her wanting to apologize for breaking up with me, but we quickly started hooking up and made our way to the bathroom. Due to people coming in and out and knowing what we were up to, it was hard to get our thing on. So we head back to my place, and on the way back she tells me that she changed her mind, yada yada. I figured this was just a shit test and was like whatever. So I had to take care of something and she is insane and a sex addict so she literally gets the number of some random dude at 2 AM in my building, says she'll message him later possibly later that night despite her just telling me she's on a man ban. I told her straight up it was disrespectful, failed the shit test and cold ignored her for a while instead of pretending it didn't happen. Not gonna lie some feelings came up after the weekend, though I wasn't that invested at the time. She didn't want to fuck, we left, I told her a bad idea, we wished each other the best and agreed to leave it at that. It's whatever, I connected with other girls, she spent the entire weekend flirting with guys. According to an outside perspective it was very obvious she was trying to make me jealous, particularly on the dance floor, constantly trying to get in my way with another guy no matter where we went. Anyway, I was ready to ravage this girl. She's leaving in a few days and I just want a revenge fuck and to kick her to the curb. I literally told her I was being selfish earlier and instinctually would fuck her shit up by having sex with her. It's a complete gratification for me and I don't give a shit about this girl, but I want this to happen for my own reasons and I want your advice on how to go about it. Pretty sure I know what some of you are going to say, that I should just next her but if this is a mistake I want to learn from it and I want to simply fuck and chuck her considering I'm never going to see her again.