There was that common belief that if two people could still be friends after a romantic relationship then they were still in love with one another or they never were.  On a lazy-soju-filled night, Min Yoongi goes on an emotional roller coaster ride with his ex-girlfriend-now-best-friend.  Maybe it was the way the 20% alcohol was settling into his veins or the way the turn of events of the night that was making him more emotional than the usual.