Amnesia Spike

Hi I'm looking for a fic where Spike has amnesia after he came back from the dead and is currently in a relationship with Lily (I think) When Buffy finds out he's alive she goes to see him in his new life but, being them they can't stay away from each other. And Lily is like really obsessed with being mated/claimed to Spike ( because she is delusional). Can anybody help?

That's Lovers and Lethe by slaymesoftly It's here at SR.

Thanks!