Best friend of ten years fight...? HELP! :(?

Okay so me and my best friend have been friends for ten years we were inseparable, people even thought we were sisters. This year everything has changed, she has made all new friends...no longer are friends but her friends and then there me. I am ecstatic that she has made new friends but I absolutely hate them ( I would never tell her that) I've had her friends over, hang out with them at school, and am always nice and friendly to them, but they're the opposite to me. Any ways like one time I asked my best friend if she would come to breakfast with me and she didn't even , make eye contact and said no. So there I am sitting at the table alone so I go and sit by her friends talking to them...about five minutes later there my best friend is because they all went to breakfast so she was all alone. She has done countless things she doesn't even listen to me any more or make eye contact I sit at the end of the lunch table everyday. I only sit at that table too so I can talk to her and be with her and I get put at the end by all of her boyfriends friends. I have told her about all of my deepest secrets and something that has gone recently on that means a lot to me and she hasn't brought it up or asked me about it or asked if I'm okay or how I'm doing. Any ways last week when I was still sitting at their lunch table at the end I couldn't take it any more I started to cry...and no one at the table noticed...no one. My friends at other tables noticed and came over but she didn't even notice...my best friend of 10 years. That's what killed me. So I brought it up and she totally avoided so that night I texted her and she said: Its not my fault that you don't have any friends. Its not my fault you don't fit in. And she also said everything that's important to me is stupid. Which broke me apart just writing this I'm bawling. So much has happened in my life that she knows about, that I haven't told anyone else. And she's saying I'm using her for her friends...which is not true. I heard from three people that she ripped my picture up and she denied it but the three people have the same exact story. She texted me last week asking if I was still mad at her and I said I would tell her if she just asked me in person. So far she has asked my friends to ask me and her friends are asking me. She wont talk to me in person...I think she's too scared. I don't have anything to be sorry for...she does. I wont be acquaintances with her until she admits apologises for what she's done. I feel lost with out her but I want to be the stronger and bigger person and show I don't need her if shes just going to bring me down. What are your thoughts on this...what would you do? This means a...Ton to me...