Traveling with the girl I like,

There are two sides to this question: it lies in you and him.

I think it's ok if you can control it and live in a room without excessive behavior.

If she agrees to share with you, but you have to meet the above requirements, if you have poor self-control and live separately, if you don't agree, even if you are a gentleman, you must have two rooms first, don't care about money, and consider the long term.