Fly Away

Bree is a normal 16 year old high school student with struggles in life. Living in some hell with her abusive father, and a mother whose addicted to meth, gets harder as she grows up. Bree can only survive for her self in this episode of her life. Her diary is where she escapes most of the time, other than leaving her home.
Til one day she leaves without notice and her diary is the only thing she brings besides her clothes along with food and water.
So the question is...
"What happened to Bree?"