for his looks, he was chosen as a sacrifice to you (a mithological creature/god)

he's been exiled from his home to become your bride, and as such is disillusioned with his people, who so carelessly chose him of all people. he feels angry at them for dooming him to this fate.

now it's your choice if you will save him and help him get vengeance, or break him till he doesn't care about anything other than pleasing you~