To get love breaks cuffs achievment, transform into a wolf to scare the guy until he see the hot chick, then just do it without going werewolf, then kill all the cops until you go back to the "romantic" scene, at this point let them cuff you, and transform into a werewolf will cuffed, you'll get the ending of prison but a guy will come, so transform into a werewolf again and he will do so too, then you'll be outside, hold Space and live happily ever after. Also this is a great game.