Im having a doubts & boundaries with my (25) unfaithful girlfriend (24) , what should I do, AITA?

Im gonna sound like a bitch to a lot of people, understand I know I feel like one & I feel dumb.

Year & a half ago I found out my girlfriend cheated on me multiple times, one time she dumped me at a bar and took someone home and fucked him (found out recently). What I know of was almost 5 years ago but I broke up w/ her for months, we hooked up at a social event and stayed together since. She gaslights me & says she never cheated to this day (even when we fight and I show her the evidence) & she has a high standard for herself when it comes to cheating for her. We went out one weekend night after I found the evidence and I got drunk and called the bartender pretty and she flipped out and attacked me & broke up with me (took me back and called me a cheater & the breakup kinda started there). Being drunk & knowing someone fucked my girlfriend while I'm in a social setting don't mend. Shouldn't have taken her back but I was trying to get out there and I met her unexpectedly & after the sex she said she'd change & I laid some boundaries, like block the people she fucked ( or what she says are the friends who ruined our relationship ) & no party trips. I loved her so much and my mind feels broken, she's very successful & has one year left in Law School & she's already hired by her firm, I really wanted to be happy with her but all I think of is the betrayal, how gross she was while doing that, how disrespectful she is to me & if that's what gets her off. Some days I purposefully try to ignore her cause I just don't want to put more effort in something I think is gonna hurt me. It's was getting better but she says she's going on a girls trip with her lawyer friends next summer and we've discussed that I don't trust her on party trips because she cheated on me before on a "girls trip". if she goes I'm breaking up with her (I'm expecting for her to say I'm controlling) . Is this a boundary or am I controlling her, should I break up or keep trying?

Im having a doubts & boundaries with my (25) unfaithful girlfriend (24) , what should I do, AITA?
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