Heeseung had a fight with you and then in the end of the argument Heeseung was in anger and out of anger he says, he said "Nobody will ever want you" and then left her, but those words kept bothering you so You told everything to your friend gang...jake, Jay, Hanni and sooha are your and heeseung's friend gang as you told them everything while heeseung was not tagging along so they come up with a plan to see heeseung's face when his girlfriend walks in hand in hand with her new boyfriend