I've always hated Xander's prejudice, looking for fics where Spuffy are together and strong but Xander just doesn't get it and acts/does something stupid. Spike (chipped or unchipped) has enough and puts him in his place and Buffy helps/supports him.

Running Wild by dreamweaverIn order to help Glory, Doc sets out to get rid of Buffy and the Scoobies just after "Into The Woods" and co-opts Spike to kill her.

I just read an amazing story called Demon Seed by BuffymeetsSpike. It's on Bloodshedverse


Goes AU after Life Serial. After Buffy is kidnapped by a horde of demons, Spike comes to her aid, only to find her imprisonment was worse than he could have imagined.

http://www.bloodshedverse.com/stories.php?go=chapters&no=12604