Spike and Xander in the S4 basement, making confessions of the television sort.

Cordelia lectures Harmony on the rules of fashion; I'm channeling my inner Heather here. ;)

Andrew provides a little of his vampyre "wisdom" to the SiTs, late BtVS S7

Someone insists on making her presence known.

It's a classic tale. Slayer meets vampire. She dies to save the world. He dies to save the world. Then there's a reunion. With demon goo. See, it's a love story.