Three people are traveling together, two girls and one boy. They are all friends and each has a room in the hotel. Is that okay?

This is normal. It is normal for companions to hang out together and go out together. Moreover, you all have your own expenses and expenses. There is nothing wrong with that. Ah, I think this is good, of course there is no problem. I don't know what you are worried about specifically, but I feel that this is a normal thing and there is nothing to worry about.