I have a friend who is living with this person who hates me. Every time he talks to me he goes home only to get harassed by her. She is not his girlfriend but he likes her alot so that makes it even harder for him. Also this girl has turned two of my sisters against me and seems to want to keep fighting. I'm afraid that this is going to keep causing problems for my friend. Should I just stop talking to him to make his life easier? Or should I just keep talking to him ignoring this girl? Also if you want to know why this girl has such a problem with me please pm me because it is a long story and i do not wish to post it because such a reason.

I have no idea how she managed to turn your own sisters against you, but she sounds very manipulative.
It's also definite that she is willing to make your life miserable at any cost.
I don't know the whole story behind it, but if I were you I would ignore her and all her silly tricks. Who cares if she attempts to turn everyone against you? Any person who is a true friend won't treat like crap just because that girl said something about you.

I'm sure once she realized that you don't care at all about her and her silly plots, that will come to understand that she has been wasting her time and will stop.

As for your guy friend - have you talked to him about this? My best suggestion is to ask him if he is comfortable with the current situation. He seems to have no issue with it if he continues to talk to both of you, regardless if this girl is being nasty to him. I'm guessing he's ignoring her attacks too.

I have tried that she slows down for a bit then flares up again. The thing is is I apologized to her for anything I did wrong that could have offended her so much. She even accepted it and told me she was sorry and that we should just move on. Also I have asked him several times if I should just not talk to him. He said it was alright but never that it didn't bother him. And he is also suicidal so that doesn't help. And where he lives is at his mothers house but I think his mother likes her more than him so she pretty much gets to do what ever she wants. He has already been chased out of his house because her boyfriend shows up whom he dislikes.

hmm.. I think that I can't help you..sorry..:(