Angel from Hell....? Uh.?

Okay, so. My friend, Vince told this girl Sammy that he is an angel from hell. And that he kills people, then sends them to hell, and he can read minds and see the future. He also told people he had a heart problem, and last weekend he growled at us all...and blamed that on his heart problem. But according to Shea, the raspy voice was because he is part Satan...Is there a such thing as hell angels or should vince just get put into an insane asylum..oh, and before he told her this, he told her not to tell anyone or else something bad would happen...they broke up, now everyones gonna know