I'd like to read some fics like Charms of the Clarion by Euridyce where either Spike tells Buffy what he was like as William or she finds out on her own and she is charmed by this information. Bonus points if Spike still writes poetry!

West of the Moon, East of the Sun by KnifeEdge. Completed at EF.

That's my favorite Spuffy fic ever, and I just this minute finished rereading it. But are there some stories where he actually tells her, instead of her finding out on her own?