<human>: So I apologize in advance if this becomes a text wall. 

I had a friend in high school (F now 20) who was emotionally abusive to me and the other people in our friend group, she was also a serial liar and attention whore.( I kind of get this to an extent as her trying to compensate for being in a wheelchair) We all strongly disliked her and had to call her out on things multiple times. fast forward a year from our graduation and she's lied about being pregnant TWICE and engaged THREE times. We all called her out on this  and she always claimed "things fell through".  The worse side of this is she absolutely LOATHES my boyfriend (M21) of five years. She thinks he abuse me (couldn't be further from the truth!) because I bruise easily and do theater (not a good mix) and have lasting marks from it. she has even gone so far as to constantly ask my sisters if my BF and I are still dating and making it obviously known that she loathes him because she thinks he is abusive. 

Fast forward to today, I have not had any contact with her since I said Au revoir, and that I was done with her lies, when I graduated. I just found out today that she is transferring from her community college to my university. So I'm terrified that I'll see her and have to deal with her. 
She always manages to make me feel like crap and like *I* am the one in the wrong and neglecting her...

So my question is: How do I deal with her having the wrong impression about my BF, and how do I deal with her lies and need for attention if I see her?

Provide a brief overview of the text.
<bot>: Ex-friend hates me, my boyfriend and makes sure I know it, and is suddenly moving to my University. HELP!