Haunt Me Please

Delaney is not what you call 'normal'.Yes she's lost her family and now lives in a horrible foster house,but there's another reason. And when this reason comes back and taunt's her in her dream's,soon in real life, her outlook on the world changes.Soon she no longer fears the past and actually thanks her reason.
But what is the reason?

Her childhood 'dream' boyfriend ; The Boogie Man.