Why is my 'bestie' acting like this? shes changed since we started highschool!?

[Heythere]

This is a fact of high school believe it or not. It sounds to me that she is trying too hard to fit in. I had a friend who did the same thing, only it was in my senior year of high school. The only thing you can do is move on with your own life. You can't want a friendship more than the other party. Trust me, it will save you and her a ton of time and heart break if you just let it go. However, if she does ever reach out to you for whatever reason do what you think is best. My best friend stopped talking to me completely in high school, but the summer after we graduated we reconnected. Sure the bond isn't as tight as it was before, but I have new friends now that haven't left me behind. You just have to learn to adapt.