Wow. One, i am really surprised she contacted you on facebook. I took the DBT BPD training marcia watsername, and we were hardly allowed to even talk to each other in class, let alone outside. Same for Anonymous type meetings.

So i think she is just waaaaay out of line. It sounds like you handled yourself the best you could. The teachers should tell her to mind her own business before the next class. She is just acting out.