Since they were a campus couple and they married really young, may be Byeol's mum got cold feet?We know that Eun…
But I personally feel there is a lot of shit going on like the FLs PAST, the dead brother of the 2ML, the Fls dead coworker situation, the MLs previous boss situation , idk if introducing the ex would even be possible considering its only 12 episodes.
What do we think happened to eun ho's ex? I personally think she died while childbirth as nobody really knows what happened and the divorce apparently happened when byeol was 1 which is just born in korean age