Toxic Straight Romance Relationship Preferably Korean

Can anyone recommend any toxic romance relationship (straight/hetero), movie or series, preferably Korean? 

Toxic defines as:

• overly jealous or possessive protagonist
• manipulative or abusive protagonist (to his partner)

Thanks

 emeraldarrows:

If you don't mind BL Secret Relationships would count. Otherwise I'd say Boys over Flowers, at least for the first half.

Thanks :) I don't, though I'm currently looking for straight dramas :)

 fanitha:

• Scarlet heart
• Cheese in the trap
• Summer's Desire
• The queen who crowns
• The monster within 

Thanks! Will check these out