I would encourage my daughter to join clubs and make new friends and focus on her school work. Her friend should be doing the same or if she’s not going to college, she should be focusing on other things.
At both my kid’s schools friends could stay in the dorm up to 3 days. After that they had to leave. If they wanted to stay in the dorms longer, they had to enroll in classes as a full time student and pay for housing. Also, guests had to be signed in and out, and could be asked to leave at anytime and dorm residents were responsible for the behavior of their guests. Seems strict but it’s for everyone’s safety and sanity. And you probably want to avoid another Sarah Lawrence debacle…
That’s a hard one. I’d say if she goes 40 mins away, encourage her to stay on campus and get involved as much as she can. Maybe have her go without her car? That way she has to stay on campus and meet new people…