I seem to like these plots, and a lot of dramas I've seen revolved around these themes
More Than Friends- Regrets Rejecting
Jealousy Incarnate- same as More than Friends
Secret (with Jisung as Toxic ML)- Regrets trying to destroy her life
New Tales of a Gisaeng- He doesn't want to marry her, and her life sort of collapses so she makes a rash decision to become a Gisaeng and he feels bad
Love Between Fairy and Devil- regret of ML again
I really like when the FL undergoes some kind of character arc after being treated horribly, and really bring the ML to his knees. Or when a misunderstanding causes FL to leave.
I know I've watched SO many Kdramas with these themes, so feel free to recommend C-Dramas/J-Dramas!
