Spike didn't flinch when Buffy reacted. He understood how confusing her position was. They all came in at one point or another and everyone had different reactions to it. Usually, he found, it was much like this. Very unpleasant, particularly in the cases of people who had the same brand of stubborn streak that Buffy Summers did. He wanted to haul her off, advise her to calm the fuck down, get her breathe a bit before throwing her straight into the masses the way that Jack had. That had been his foolish mistake, the stupid boy. He should have grabbed Xander or himself first, someone that Buffy was good with. Not Faith. Not with the rotten history that those two shared with each other. Of course, that wasn't to say that he was in any less of a decent position. Buffy probably still thought that he was evil. Sounded much like it, given that Faith was busy explaining that he had his soul intact and all.
Buffy had lunged forward and Faith took a hit. His instincts told him to step in, get between the two before they went batshit on each other (it wouldn't have been the first time), but Faith stood down. She let it go. Good girl, Spike thought to himself, quietly moving close to the group.
"Dawn isn't here," Spike answered, watching her carefully, "probably off in Europe with Giles, Red, and the rest of the Slayer lot. Perfectly fine, I assure you."