I Know My Wealthy Fiancé Has Always Wanted to Kill Me

Modern Romance With a Twist: She Thinks She's the Hunter, Unaware She's Already Fallen Into a Trap

I want a male lead who's a roguishly handsome playboy. He approaches the female lead for some reason, but she wins him over and he falls hard for her, never realizing that he's the prey who fell into her trap long ago. I hope the female lead has a strong contrast between her different sides, and that the two leads use and play off each other.