I remember watching the one exacting revenge and the cheater still ended up together, but some great romanc started/fueled revenge are:
Temptation of a wife - guy cheats with her bestfriend, they try to drown her, they ended up killing her unborn baby only. She makes her revenge plan. She falls for the guy sho saves her from drowning and who was helping her in her revenge
Temptation of an angel - opposite of twmtation of a wife, since its the guy who was cheated.
Secret love - the guys makes a reveng plan against the girl he think kills her GF - putting her in prison and making her life hell when she is out. Then he ends up falling for her
Kleun cheewit - very much the same as secret love. With guy hating girl think she killed his GF
The reason or start of revenge is family, political and etc. But revengee ends up falling for a girl who is daughter/family of the person he hates:
Princess Man -its kinda like romeo and juliet, where their families are opposites political/social parties, then er father ruined his family, he is out for revenge but he still loves her.
Queen of the game - its a double reveng plan. He uses her her to make his revenge against her father, he succeeds but he falls for her. She finds out his plan, and she decides to make her revenge plan against him
The devil - the guy makes masterplan to make another guy who ruined his brother/family be miserable in a series of murders connected to brother. But he falls for the girl who is helping the other guy