The Fallen Star by Jessica Sorensen
Summary: For eighteen year-old Gemma, life has never been normal. Up until recently, she has been incapable of feeling emotion. And when she’s around Alex, the gorgeous new guy at school, she can feel electricity that makes her skin buzz. Not to mention the monsters that haunt her nightmares have crossed over into real-life.
But with Alex seeming to hate her and secrets popping up everywhere, Gemma’s life is turning into a chaotic mess. Things that shouldn’t be real suddenly seem to exist. And as her world falls apart, figuring out the secrets of her past becomes a matter of life and death.