I'm not really sure if this is a specific fic I'm looking for or not so I thought it'd be safe to put here since I'm sure there's probably more than one fic of this type out there.

Basically, any Spuffy fic where Spike gets dusted in it early on. Maybe it's Xander/Riley/Angel that does it out of jealousy, maybe it's an accident while on patrol with Buffy, maybe Buffy herself is finally pushed to her limit and dusts him without thinking. Then Buffy is later forced to realize how much Spike has inserted himself in her life and how much she relies on him. Maybe she gets a sneak peek at how much Spike loves her/she loves him in the future. Either way, she is given a chance to fix things by going back in time/making a wish/resurrecting him/etc.

I know I've read at least one fic like this in the past, but I'd like to read more if there are any out there. So, please help?

Spike is dusted at the beginning of After Dust by emg
Spike gets staked! That's just the beginning of his troubles. S/B romance S/Dawn friendship AtS crossover

...but that isn't a time travel fix up fic, it is a W&H manipulate things fic.

Regrets I had a Few by Schehrezade
http://www.athenewolfe.com/justrewards/viewstory.php?sid=48

Set in Season Six in the first moments of Tabula Rasa then spins off into a very different world! What would happen if Teeth and his goons had actually 'dealt' with Spike? How would it effect Buffy and Sunnydale if our favorite Vamp was taken out of the equation? Warning: There is a main character death and the angst factor is high but I do like a happy ending

Just read another that fits this rec request...

Though I Walk Through the Valley... by randi2204
The unthinkable happens, but when Spike is gone, Buffy realizes she needs him back. No matter what.

Thanks for the recs! I really enjoyed them, especially the one with Wolfram & Hart.