You know, not to be pissy, but I remember plenty of discussion of Syaoran and Sakura in the chapter threads when the story was focusing on Syaoran and Sakura.
And I'm not complaing that we don't get the chance to fangirl over Fai and Kurogane staying together forever. I'm saying that... well, the blood WON'T matter after this. Sure it saved Fai's life, but then... it's irrelevant once it completely heals him? Vampire blood -doesn''t- work like that. Aspirin does. xd And, now, what real price will/does Kurogane have to pay to save Fai's life? Nothing really. It's anticlimatic- just as anticlimatic as it would be for, say, Sakura to get her memories back at the end of TRC. Which, if it happens, I would hate just as much. Not to mention that it really doesn't make any sense that Fai's magic would save him from being a vampire. Why would it? He still has the blood in his body.
Either way, of course, it is good that Kurogane saved Fai, and it's certainly evidence of the bond they share. Their relationship won't be the same after this, sure- but it's still cheap.
And Fuuma with another feather is an interesting turn.