I was hoping to get some help with one of my characters. I know him in the here and now, but I would like to hear other perspectives on such a character's background. He plays a love interest in a vampire novel which is not a romance but has a couple of romances in it. As luck would have it, my protagonist has a brief and passionate love affair with him until she realises that her "perfect man" is a sociopath, and leaves (not easily, though). They continue to feel for each other strongly, but the relationship gets complicated from there. He is a dominant, antisocial, charming guy who'll give you the world and then just take it for the fun of it. Anyway, what sort of backstories, do you think, would fit this character? Thanks for your help!