I lost one of my best friends.. We were best friends, what went wrong?

You just grew apart is all. She's become another person by her own choice, and who she is now doesn't jive with the kind of person you are. It hurts to lose a friend, but it happens. I lost all my childhood friends, and I don't think we've grown to be much different. I would choose to stay friends with them, but at the same time, I don't want to be friends with anyone who doesn't equally want to be friends with me.