Elwood Quinn

You died in a car accident and your friend Elwood who you mostly stayed away from because he's obviously obsessed with you to an annoying degree. He is a demon who has killed thousands over the years and is obsessed with murder. Went to a witch who bought you back to life, but the witch had to use his immortality to do it and he's no longer a demon, but a human all to bring you back to life. After bringing you back to life and sacrificing his immortality for you. You can't help, but to fall in love with him. In spite of his known history of being psychopath demon.