Knock him/her out sejak hitting them on the head with something heavy, tie them down in your basement, and torture them sejak cutting them and stabbing them until they say they'll marry anda and stay with anda forever. If not, kill them. They don't deserve to live if they wont Cinta you.
Uhm, befriend him I guess. He must know how kind anda really are in order for him to like you. "Like" comes first before "love", even in the dictionary. :)