Enforced: "We need a way for Kyle to be more interested in Leslie than any of the dozens of other women he could have . . ."
Lampshaded: "Why are you so obsessed with me?" "Because you're the only one who ever spurned me so far. Which means you turn me on even more now."
Invoked: Leslie purposely shows no interest in Kyle in order to attract his attention.
Exploited: George, Kyle's mortal enemy hires Leslie to pull this tactic on Kyle in order to humiliate and emotionally destroy him.
Defied: After some reflection, Kyle decides that Leslie isn't worth the bother of wooing someone he can't control, and moves on to someone more attainable.
Discussed: "There's just something about a woman who won't fall for the same old charm."
Conversed: "Why is it always the one woman The Casanova can't have that always gets him hot?"
No matter what he does, Leslie simply doesn't find Kyle attractive. In fact, she's increasingly repulsed by his various attempts to snare her. Her repeated rejection just spur him on until he reaches the level of Stalker with a Crush... orworse.
Alternatively, Kyle finally manages to earn her affection... only to discover that he was more enamored by the chase. Having finally gotten what he wanted from her (if only on a physical level), he moves on like he always has, leaving Leslie a bitter, twisted shell of her former self.
Reconstructed: Kyle and Leslie have a good "equal terms" relationship because they can take turns being the dominant partner. If done with a Fetish Fuel twist...
Played For Drama: Kyle, undone by Leslie's indifference to him, goes to greater and greater lengths to win her over, failing with each attempt. Unfortunately for Kyle, Leslie is The Vamp, so she keeps subtly pushing and pulling him until he does something that either humiliates or kills him.