Sunghoon had fallen in love with a girl, who was deaf

he had no idea she was deaf and would start to be rude to her when she unintentionally ignored him

"God why're you ignoring me?! Are you deaf?!" he shouted at you

you had no idea what he could possibly be saying but you knew he was yelling at you so you cried

he later found out that you were mute and immediately came to apologize in sign language

"I'm sorry" he signed "I had no idea you were deaf"