Villain gets the girl

if villain get's the girl ,won't h become the ML

No bad ending you mean? Maybe:

• Love Better Than Immortality (the evil lord, like enemy of people iirc)
• Love between Fairy and Devil (devil)
• Nevertheless: The Shapes of Love  (a playboy who sleeps with multiple women at once)
• That Winter, the Wind Blows (a conman who pretends he's her older brother)
• The Innocent Man (an avenger, no kidding, who's marrying the step-daughter of an ex who left him when he's in jail for that woman's crime)
• The Romance of Tiger and Rose (the husband who tries to kill her a few times, but not the final villain)
• Wandering (her kidnapper, a "pedophile")