fly on the wall
you have but-face.
Assuming that it is both Buffy and Faith in their subconscious states in that dream, it doesn't really matter whether Faith was "good" or "evil" at this point. Her subconscious surrendered the information, not her. At her core, I don't think Faith was bad. She made bad decisions, yes, but I do not believe she was evil. So it's entirely plausible, to me, that subconsciously she still wanted to do good.
I do think it's entirely possible, though, that this was totally Buffy's dream and subconscious and had nothing to do with Faith actually being there.
I do think it's entirely possible, though, that this was totally Buffy's dream and subconscious and had nothing to do with Faith actually being there.