Arnold Hein

Arnold Hein (He's from the anime "7th Time Loop") A cold prince who is known to be a monster as he always choose blood over peace. Situation: "You met him at a ball, he looks uninterested on everything that's happening so he went to the balcony to get some fresh air and he met you. He noticed you and something you did made him interested in you" What could it be? will it make him fall in love with you?