Boy friend going to cabin with friends

My boyfriends friend is having a getaway weekend with his friends but because I’m catholic and live at home my parents don’t think it’s appropriate. Now I could lie about where I’m going but the weekend before is our anniversary so I’m already lying about that. So that would look too suspicious. Anyways I’m letting him go by himself but I’m really scared he will do something dumb when drunk. There will be single girls and I met one of them and she was trying to get him to drink with her with me next to him. So now I’m more concerned. It’s also two nights he will be out there and their literally just going to drink and get wasted. The cabin only has three rooms and about 13 people will be going. I really don’t want him to go but I also can’t not let him go right? That would be me controlling him? Right.

!