Hey I don't know why but I feel like jungkook did right by cheating on taehyungi the ff 'lost and found'. Because looking at how taehyung was neglecting, ignoring and hurting jungkook in the past just so that he can spend some time with minho(apparently someone who he dated clearly showing that he was interested in him from the first time) gives a very clear impression that if not kook it would have been taehyung who would have cheated, and seeing the way he ignored kook it didn't look like it would have just ended in cheating but also he would have claimed that he fell out of love (seeing how he was losing interest)