College Roommate Problem!!?

Oddly it sounds like she is mad that you have not tried to be her friend. Since her IM's seem to target you I think she wants you take an interest in her. She may be a little narcissistic and want someone to pay attention to her. If you start asking her a lot of questions and advice you can make her putty - you can manipulate a manipulator by letting them think they are in control. Let go of your own ego and use hers control her.