You're Dead I'm Alive

Hope and Robbie are vary close, there thick as thieves, he's all Hopes had, They did every thing together. He protected her, and cared for her when there mom and dad didn't. One day hope woke up Robbie was know where to be found. He vanished, he couldn't have left her, right? Did Robbie leave her?
Did he get taken?
Will he ever come back?
I don't know read to find out.