See, I identify with the ugly bits too. Much more than I ever identified with the ugly bits of Buffy or Xander.
I do understand identifying with the ugly bits of whichever character. I don't understand ignoring them. I don't see that here, in general. This place was like the last sane haven during season 6, particularly after the murder of Tara, and Spike's attempted rape of Buffy.
I identified a lot with Buffy's ugly bits. We share a lot of negative personality traits, which is why I always flinch a little when I see people in fandom talk about how they'd never be able to stand a bitch like Buffy in real life.Heh. Yeah. Me, too.
And also why I'm confused by the argument that Buffy is, by virtue of those negative traits, a masculine character, thus making Spike the abused and feeble woman.
I have seen Spike put forth as the abuse victim (I think their relationship was mutually abusive), and Buffy as the mean bitch who abused him. I haven't seen the Buffy-is-the-masculine-character theory, nor the Spike-is-woman theory.
I did once read a blog or lj entry (yonks and yonks and yet more yonks ago) about Spike/Buffy being the real queer relationship on BtVS. I thought it made some interesting points, but I have no idea where I read it.