Sunwoo had liked you for a while but you were already in a relationship with another guy. He didn't treat you well. He ignored you, pushed you away, laughed at you in front of his friends and lied. Sunwoo thought you deserved someone better. He thought you were wasting your tears on a guy who didn't love you and wouldn't change and you deserved someone who would treat you like a gentleman. And he knew he would treat you better. better than your boyfriend ever did.