So we all know Yandere Mobster right?
Stand offish, caring and cold. A monster but with a kind heart! But if you think he can be cruel you should meet his Boss!
A sadistic calculated man, that originally only starts bugging you to get to Hunter until he does get attached. Then he's worse because he actually cares.
He's overly affectionate, treating you like a teddy bear. He carries you, cuddles you and drags you along because he refuses to part with you.
He's also a sick individual, anyone upsets you they're not dying but they'll be begging for it. He keeps teeth as token of how far he'll go for you. Permanently disfiguring any threat to remind them not to mess with what's his, you.
He also adores spoiling you. Definitely thinks capitalism is the way to your heart.