@DominicMichaelis, I can't let your personal post go without comment. It is a very long time since college for me...still, there are three fairly likely reasons for your friend to speak as she did: (A) she has a new boyfriend and does not wish your presence to mess that up; (B) she wants you as a boyfriend and is trying to get you to speak up and stop being iffy; (C) you really annoy her, and your apparent friendship is just do to the artificial closeness of a college campus.
All three are quite possible. I'm not entirely sure how you would find out more, unless you have good friends in com…