Girlfriend Going To Another Fraternities Formal?

Hi so today my girlfriend of 6 months told me she was going to another fraternities formal… With a guy she used to hook up with. Am I in the wrong for being upset and telling her I’m uncomfortable with her going? What advice can yall offer?

No, I’d be uncomfortable as well.

You need a date for the same night.

I’ve been on both sides of this.

Last Friday, my date cancelled at the last minute (genuine reason, brother drove 5 hours and surprised her with a visit) and l took a close, non-single female friend (I used to hook up w/) to a dated event for my fraternity. I’m friends with her boyfriend, though, and I made sure he was alright with her going with me. If he was hesitant at all, I would’ve immediately found someone else.

Twoish years ago, my now-ex went as a date with her ex to a dated event. I was extremely uncomfortable with it. They hooked up; we broke up.

You have a right to be uncomfortable and you should get out of that relationship if she doesn’t get that.

Edit: “Another fraternity’s formal”–is she not going to yours? If so, that’s a really low blow.

It is definitely reasonable to tell her you don’t want her to go.

I don’t think OP means instead of his, just that it’s another group’s formal. At Brown the formals were usually on different nights (pure coincidence, we certainly didn’t coordinate with any other houses). If OP did mean that…wow

She’s telling u where u rank in her priorities.

Have you discussed whether you expect your relationship to be exclusive or not? If you haven’t, you don’t really have a reason to expect it to be. The guy she is going with may refer to you as “the guy she has been hooking up with lately”. If you want exclusivity, you have to ask for it and give it.