I have two great friends

I have these two best friends we all 3 use to be best friends and now both of them are fighting one is trying to become friends again and keeps sayin sorry and the other isnt wanting to forgive and its just taring me apart and I keep on telling them that its between them and not me but I dont want them fighting them I have givin them the advice that I know that they could use if they would sit down and talk it over things would go back to normal but its all over because one supposably said something about the other and now I just dont know wut to do I am afraid that its going to get so bad that they are going to fight over me and if that does happen all I can tell them that they cant fight over me that if they are going to fight over me then I am just going to stay away for a while until they can work their differences and quit fightin cause I have my own family problems and I dont bring them in it I just cant do this I dont want to feel like I am being tugged on they are like my sisters but its like or group is just fading away like the world is ending I love them both but I dont want them to fight I just dont know what to do they is my sisters and idont want to lose them or anything and I ihope they will soon work their differences just someone please give me some advices