we don't truly appreciate what we have until it's gone (2)

— potential fiance betrays fl with her sister in her future, now back in the past fl decides to not deal with his neglect and bring upon his ruin however her wavering feelings causes the fiance to become obsessive and deranged over her previous devotion and love.

— (not the main couple) the king and queen of another nation that ml and fl visit are struggling through a strained relationship as the king appears to be oddly upset with his once loved wife, it's revealed he's been cheating on her with the saintess, when confronted the king discards his wife but not before fl removes the weird curse making him unfavor his wife, with the curse gone he's heartbroken and distraught at what he's done to his wife.