Loving a Demon

A girl who is alone in the world. Her mother doesn't pay much attention to her. Her father left them. Mother kinda blames her. Her brother visits often. Her best friend stays by her side along with her boyfriend. But that wasn't enough. She has kept a secret for a long time. Only her best friend and boyfriend only know about it. But when a new boy comes to her school. There was a sudden change in her. She fell in love. But when she finds out what he is and what he's done. She doesn't know what to do. But he was different too. But she changed him. He loves her. But she is human. Her name was Sarah.
(Maybe some stuff that are inappropriate, but not too much. And they are not that bad either.)