Person I once knew...?

Dear stranger,

Recently, I've seen my best friend become a stranger. I truly don't know who she is anymore. I don't know what is going on in her life and it hurts because she is my best friend and there was a time when I was hers. I can't go to her with my problems anymore, my accomplishments, or just the little things. I never know what she's thinking. All because of a boy. (Who I didn't like from the start.)

-Blue