After watching 3 num 3 mum.. I think Son throwing himself at wiew...giving her little hints that he like her. I don't think she's playing the innocent role, i just think she was too embarrass. They probably have something going on outside the lakorn. Wiew has that blank face like "i don't know what's going on here" as for Son he's letting it be known that " I LIKE HER"! Tooo freaking cute!!