I know this is kind of specific, but does anyone know of any stories where Spike & Buffy get together before her dive off the tower, and then she's resurrected? Thanks in advance!!

A Gem of a Soul has them having a tumultuous relationship before The Gift and then carries on through to S7.

A Gem of a Soul by spuffy luvr
Ever wonder what would have happened if Spike hadn't lost the Gem of Amarra to Buffy? If he'd won that fight instead? Warning, this story starts out very dark. Evil vampire, after all.

Huh! For some reason I marked that one as 'read' at EF, but either I didn't read it, didn't finish it or I lost some time there...

It is very good. There are some tough parts earlier, I had to take a break from it at one point, ha, but it is worth the read, definitely.