How do i get my best friend back?

I think that the worst thig you can do is to let it go- I mean you have been friends for so why let it go now? I thought a close friend had gone off me and she was practically never on her own for me to talk to without this other girl anymore. They had an on and off friendship and in the end it didn't work out so I was sympathetic and let her know that I was there for her and now we are still good friends:) just let you BFF know that you feel upset right now and you don't want to hurt anybody and you feel that your not as close anymore. if she ignores it she's not worth it but it's most likely she will listen. Give he a few days and see how things are after that and I really hope things loom up soon for you:)