When Buffy finds out that not only is Spike alive, but also missing after the big fight in LA, she goes looking for him. But nothing ever goes as expected. When she finally catches up with him she finds him evil, malnourished, and with - Drusilla? Dawn and Giles also make an appearance.

The monks never managed to get the Dagon Sphere to Sunnydale. Thanks to his own research, and full access to the Council's resources, Giles has discovered its existence and location in Elk City, Oklahoma. Viewing it as imperative in the defeat of Glory, he sends Buffy and Spike on a road trip to recover it. Anger, snark, and UST ensues.

Post The Gift, Spike is dealing with Buffy's death, but it's a little hard when she won't leave him alone.

Season six, Buffy struggles with life after death, and her first Christmas without Joyce.

Season Five, sometime prior to “Out of My Mind.” Spike gets his chip out. What’s a Slayer to do?

In an AU where Spike has killed the Sunnydale Slayer, Kendra, and set himself up as Master, a new Slayer moves into town and gives him a run for his money.

What if instead of sending Andrew to help out Angel & crew with Dana during "Damage", Buffy had chosen to go herself?