Because He Needs Me by DreamsofSpike
Summary: Season Six, Post Entropy...After Spike's encounter with Anya in the Magic Box, Buffy's not sure if she can forgive him for the hurt that she feels -- until he shows up at her door, needing her more than he ever has before...where do a Slayer with iron walls around her thrice-broken heart, and a wounded, desperate vampire go from here? Who's really to blame -- for what's happened to Spike, and for what's happened between them? And somewhere, in the midst of it all -- can the two of them find forgiveness, and the love that they both need so desperately?
Can be found here on TSR. | 
