She got drunk and my bf had her sleep with him

We come from a culture and country where we don’t drink, so I don’t know the etiquette of what to do when someone is drunk.

My bf is in Korea with two of his coworkers. One guy and one girl. The guy and girl used to date at some point. My bf told me last night that the three of them were going to go clubbing. Then told me she got way too drunk and that he would have her stay with him in his room.

I feel like she would have been fine in her own room. I mean it’s not like they’re staying at a hostel or something, it’s a hotel! She’s be safe in her room.

But again, I’ve never been drunk or around anyone who has been drunk so I don’t know if this is considered the right thing to do. Please let me know!