"What's done...  Cannot be undone..."  she quoted.

"And when she's gone, remember you onced loved her, you once needed her, you once cared about her more than anything in the world...  You can't deny she was ever there...  You can't deny what you had, you can't deny that it ended over absolutely nothing, you can't deny that, regardless, you still think about it...  No other girl can love you the way she did...  She does...  One day...  You'll realize what you've done.  You'll come back.  And she'll be...  GONE."  Young Jae quoted to Jaebum...