What Happened To the Girl

What happened to the girl who was so sweet
What happened to the girl who i was the friend of
Waht happened to the girl who used to call me when you had a problem
What happened to the girl who was so nice
What happened to the girl that i sat next to in 3rd grade
What happened to the girl you used to have my back
What happened to the girl who used to make me happy when i'm sad
What happened to the girl who used to be there to wipe my tears
What happened to the girl who used to be my best friend since third grade
What happened?