Looking for fic where Buffy goes back in time for a book a time shifter demon stole from the new council library, Willow sends her back. She runs into Spike he helps her they get caught in the rain and go to a laundry mat he sees his lighter from her Spike. There is a special potion meant for Giles if her helps her its so whomever sees her forgets. Towards the end Spike gets Ethan to change it so he remembers the first time he hears Buffy say I love you.
When she gets back to the present Spike is there and not dead any longer | 
