S2 Halloween ep, Spuffy love in past, Spike killed, Buffy does a spell

This is a long fic where Buffy was a Slayer in the past and Spike was her vampire lover. Her Watcher found out and killed Spike, and a grief-stricken Buffy does a spell. They find each other again in the S2 Halloween ep and rather than just becoming her costume, Buffy becomes her past self. She and Spike fall in love all over again.

Never mind, pretty sure I found it. Think it was 'Echoes' by HollyDB, which is apparently only via request from the author.
Sorry 'bout that...

That's Holly's fiction Echoes, but it's no longer online. You'll have to ask her for a copy, or maybe someone on here has it.

Yep, looks like we posted at the same time...lol!

That story is on the Do Not Exchange Here list so sadly we cannot ask for it here. The only official source is to contact Holly directly. Sorry.