The report stated that the couple went from lovers to simply acquaintances around the end of last year, after going public with the official dating news back in March of 2018.
In April of the same year, Kim Bum began his mandatory military service as a public service worker. It seems that the couple naturally drifted apart, with Kim Bum's absence as a result of his mandatory duties.
Meanwhile, Km Bum debuted in 2006 through a KBS survival audition program, while Oh Yeon Seo debuted as a member of girl group LUV in 2002.
[UPDATE] Oh Yeon Seo's label Celltrion Entertainment has confirmed, "It's true that the two broke up. Their reason for breaking up is a private matter."