Boyfriend sleeping at another girls house?

Heather • Practically stumbling through life

My boyfriend’s going to a party with his friends on Sunday, and it’s at this girls house (bearing in my mind this girl and her group of friends aren’t exactly best pals with me) and I’m completely fine with him going because it’s just a party but he’s just said that everyone’s staying the night at hers now as well which I’m a bit sceptical about.

He’s still with his friends when they sleep over but the girls in this group are notorious for getting really drunk and obviously when people are drunk things happen, all of them except two are single and there’s 6 of them. I trust my boyfriend, but I don’t trust the girls and I feel like when my boyfriend’s drunk he won’t know what he’s doing, so anything can happen.

I’ve already said that I’m fine with him sleeping because I don’t want to stop him from having fun, but I’m so sick with worry about it.

Is it okay to not want him to go?