She’s actually lucky she was given advance notice. My first roommate in college just showed up in the middle of the night, on multiple occasions, with one, two, or three football players. So I had to grab my pillow and blanket and attempt to sleep on the couch in the common room on our tower floor, or attempt to continue sleeping with that going on two feet away from me. Then she accused me of racism when I complained to our RA. Looking back on it, I actually think she was just raised in a very different environment than me and she could not believe that I could honestly and without “-ism” have a valid concern about being treated like that. This is a life lesson that has served me well, as there are many, many things that I believe are simply common sense which based on their behavior, other people believe are utter nonsense.