Friend Help: She Turned and changed. ?

A Year Ago My Friend Went Out With A Lad For 6 Months Then He Broke Up With Her And She Took It Really Badly. She Started To Listen To Emo Music (Which i was fine with) And Being quite depressed so i added this boy on msn to talk to him about her. He was surprisingly nice to me and we ended up together, but only for a week, then i realized how selfish and horrible i had been to her and left him. Out of anger he told her and A Few weeks later she self-harmed. she promised it wasn't my fault , but i have secretly always blamed myself. by now she was fully emo, worshiping mcr and only wearing black etc. i hav nothing against her sense of style and taste in music, but it worries me. A few months later she did it again. She doesn't know but it really effected me and it broke my heart, but i couldn't tell her because i had to be strong for her. she has had counseling and stuff but it still worries me, especially as she has gone all moody again. I Dint What to do, is there anything i can do?