Oh, yes. The Special Relationship of Spike and Dawn in which Dawn, when seeing Spike for the first time after learning of the Attempted Rape of Buffy, coldly threatens to set him on fire if he ever hurts Buffy again, and that was pretty much the last interaction between them we ever saw. (And that was the season's second episode.)

And since WarEmblem declared that he/she is convinced that Buffy was actually in love with Spike in Season Six, and that was the real reason why she was so conflicted about having sex with him, in spite of all the canon evidence to the contrary, I'm pretty sure we know which corner of the internet WarEmblem hung out in.

As for the comments about Xander only being there because he still crushes on Buffy, I find it to be an example of the many double standards applied to Xander as a character. Angel and Spike are both shown to be pettily and pathetically still unable to get over Buffy, and it's hailed as Twu Wuv and swoonworthy. Yet despite five seasons of solid evidence that Xander did get over his crush on Buffy, the Xander bashers just looooove to drag out the chestnut that he has always been crushing/in lust with her (note that it's never that he was "in love" with her, 'cause that would somehow make it "all right") and turn it into "proof" that he's just an unprincipled, unthinking scumbag who only wants to get inside Buffy's pants. *eyeroll*