“Tabula Rasa,” by Rebecca Rand Kirshner
Spike and Buffy have kissed, and Spike for one wants to to know: where do we go from here? And—what a shock—Buffy would prefer to just forget about it. It was Sweet! And the end of his mystical kumbayayas. Her slayer lips definitely didn’t mean it and they won’t be going there again.
She’s just declaring that there won’t be a repeat performance when a shark-headed demon shows up in pursuit of some poker kittens Spike owes him.
Buffy joins the fray—though we can safely assume he didn’t really need the help—and Spike runs off. Just before the credits roll, she remembers that if she’d just stand back and let him get dusted, her crushed-out vampire problems would be over.