Fallen Wings

Nolan is an angel fallen from heaven after a demon, whose mate Nolan killed, ripped off his wings. While hiding from both the demon and heaven's assasins in the human world, he enrolls in school and feels drawn towards a girl named Arya Winters.
Arya is an intelligent girl, yet very shy. She is in her junior year in high schol and her life is pretty god. A mysterious stranger shows up in her classes and she becomes determined to uncover whatever his big secret is.