This is being searched for on SeekingSpike by Crow_doll and has yet to be found. Does this sound familiar to anyone, it sounds like it might be a good read.
'Hi all sorry if this has been posted before. I'm looking for a fic that used to be on xanderxtreme which seems to be closed. In it, Spike got out his chip and kidnaps Xander. He makes him sleep chained up and hits him, all insisting that he loves him. Willow comes searching for Xander and Spike kills her. It's really dark. Thanks!'