Jimin becomes Yoongi's outlet and Yoongi becomes Jimin's in a game both are content not to lose.      

Jimin locks himself in his room after a tragic loss, and Taehyung decides his mourning is becoming ridiculous.  He proceeds to drag Jimin out to help him get over it, though the latter plans to sulk the whole night anyways (luckily things never go Jimin's way).