If only you realise.. "I like you, but why can't you realise?"

Sunghoon was your friend since high school and he likes you more than friends. He always made his feelings towards you obvious by his actions and words but you were 'blind'. Your parents told you to go on a blind date and you obeyed them. The blind date was going really well but then, your date's girlfriend came to him and argued with him for 'cheating' on her.