Jonghyun knew Key was his first love. And he will never ever forget how Key looked at him and made him a fool of himself. Jonghyun will not reject the fact Key played him like a toy. He knew he was Key's puppet. But at the same time, those innocent butterflies fluttering in his stomach made him stay by the diva's side. Jonghyun didn't care if Key abused him emotionally. He was contented with his smile, his laughter, those lips Jonghyun would claim his. 

But Jonghyun knew how cruel fate was. He knew how cruel his first love was too. He believed Key wasn't the first one to hold his heart, rather, he would be the first one to break it and he did. In the cruelest way possible. Jonghyun remembered everything. He thought nothing was wrong but Key suddenly disappeared with only a note on Jonghyun's desk. 

You bored me. 

Key might've never known how it destroyed Jonghyun. Key might never know how much Jonghyun loved him. But Jonghyun was fine with that, after a few years. He found another person who'll love him and take care of him. 

The complete opposite to the first person who unlocked his heart.