Could it be any of these?
Caught Between Two Lovers by pattyanne
Summary: Set around the time of 'School Hard', this is a retelling of Buffy and Spike's first meeting. For the purpose of the story, Angel does not exist. Also, you'll find Spike and Buffy have slightly different personalities than you're used to. Hopefully, you'll like them.
http://spikeluver.com/SpuffyRealm/viewstory.php?action=printable&textsize=0&sid=2682& chapter=allDreams and Desotos by Bloodshedbaby
http://dark-solace.org/elysian/viewstory.php?sid=1586An alternate end to Becoming where Spike and Buffy leave Sunnydale together and wind up in a small New England town where nobody knows their secret identities. But the past has a way of finding them when they least expect it. Complete.