You've really caught the dispair of canon here. I really love how the lighter symbolizes everything between them... Spike *needs* it and Buffy takes it because of some need she probably doesn't even understand. Two wounded people--perfectly heartbreaking. And I love the hope at the end that Spike is ready to end this destructive game.

One thing... "C of E training" I doubt many readers will know this one... you might just want to say Church of England.