How can i fix this situation?

a close friend of mine just broke up with her boyfriend, who incidentally, im also very close to. she has since refused to speak to me and seems to have a rather large amount of contempt for me. i honestly dont understand what i could have done to make her so angry, but recently im coming to the conclusion that shes not truly angry at me per say, but rather she feels that by getting rid of me, she severs all ties and connections to him... but heres the kicker: im not him, and i shouldnt be the one to suffer for his actions. ive tried being diplomatic and asking her what ive possibly done to upset her to this point, to no avail. im at the point where i really think that a good verbal slap in the face might do the trick. you know... tell her what i mentioned above. but wit her being so stubborn and hard headed, im not sure thats a good idea. im stuck between a rock and a hard place, i really need some help =/