I'm trying to remember the name of a fic it was set around season 5 Spike had a soul, he comes to Sunnydale with Angelus, Darla and Dru, he meets Buffy telling her he wants to help he but she is unsure about him but when she meets Angelus at the Bronze she falls for him slightly.

Eventually Buffy and Spike do get closer and when Joyce falls ill Spike calls in a favor from a surgeon he knows. Angelus at some stage feeds off Dawn, Buffy saves Dawn and take Angelus to Glory using his blood to open the portal and sending her home then Buffy kills him.

In the end you think Spike is going to die burning up from the sun but he doesn't. I hope someone remembers this fic cause it was really a good read.

I also remember at the end Spike goes to the Bronze to find Buffy cause she thinks he is dead and he is now human.