Falling For a Ghost? How Is That Even Possible?

Amy Chambers was just a regular girl. She went to the movies alone, didn't really have many friends at school, had an abusive dad... But one day at the movies, she meets a guy named Cale. He's beautiful, mysterious, and nice.
Eventually, Amy finds out the truth about Cale. He's not human, or, at least, not anymore. He's a ghost.
Cale shows up when he wants to, talks to her, befriends her, comforts her...even when she doesn't want it. He just won't go away. And part of her knows that she doesn't want him to, because, the truth is, she's falling in love with him.