When Buffy came back from the dead, she was lost. She had know to no one to talk about the torment of her death, she talk to the only person that she truly hate, Spike knows the truth about Buffy, she start a relationship with Spike that was the addictive to Buffy, she wants to make all stop, I mean Buffy did eventually stop, but not Spike he raped Buffy to get her back. Then he did these trails that involves pain and suffering to get his soul from a demon, so okay that this so wrong do, but season 7 wow Buffy did admit to herself she truly does loves Spike, so didn't he even though it was the final season to figure that out, I mean I knew it did anyone else knew, season 6 did show a lot of Buffy's feelings to Spike.