This is a good time to really learn the true meaning of friendship and self evaluation IMO. Many of us as adults look back and wish that we had not let certain people who were in our lives take advantage of us for as long as they did, me included. I personally would never have the nerve to ask someone to sleep somewhere else so that my boyfriend can spend the night with me. A room where she or her parents are paying for the room and board, having to pack up books, find somewhere to study, hang out etc. I think it’s a personal problem between the room mate and her boyfriend. They want to be together and there is nothing wrong with that but they should not inconvenience someone else to do it. They should work out the details on how they are going to be together leaving your DD out of it. Your DD should let her room mate know that she is not comfortable with it. Period. No other explanation needed. If she is not her friend anymore then she never was. Friends still remain friends even when they do not agree. This is also a lesson for BF who as a young man should be trying to figure this out, it’s about personal responsibility. Reading this just gives me one more topic of discussion to have with DD20.