Claim fic with jealous Buffy

I'm looking for a particular claim fic that takes place in season 2. Buffy and Spike are enamored with each other from the very beginning and I want to say that they claim each other I'm pretty sure that they did but I remember a particular scene that takes place during the episode Lie To Me where Ford gets them all down in that little basement and when Buffy takes hold of Drusilla she gets mad that Spike begs for Drusilla's life and she's all like if you love me why do you care about her and he keeps telling her that he just wants to get her better. I believe Spike ends up killing Ford but not turning him because he promised Buffy he wouldn't but he kills Ford because Ford betrayed Buffy.

that is duty or destiny by tasha i am in the middle of reading it and it is great.

You are so right! I glanced at this when I first started looking for it but didn't read far enough down to that scene to notice. Thanks!