Get over it (to her), You aren't some emotional rag for her to cry at if something goes wrong with her boyfriend. I know this, my friend would always guilt trip me into hanging out with him cause his girlfriend (well, ex gf now) makes him hang out with her friends. Whenever she told him and me to be friends with them I stood my ground and said "Listen, I came to hang with -friend-, not try and be friends with women who have horrible sense of taste, have aids hanging out of every hole possible and have the nerv to insult my sex life because they sleep with everything that moves."
She started respecting me after wards, and he kept getting whipped until she left him and is now engaged to a random guy she met 2 months ago. Funny how life works...