Sorry, this is a bit long, tl;dr at the bottom for those who don't want to read all my musings.
I have two questions that have always bugged me about xxxHolic.
I've been wondering this for quite a while, but I still haven't figured out an answer I'm content with.
1) TRC established that there are alternate versions of people in all the different dimensions. However, since Watanuki is an anomaly of sorts, created to fill the gap real!Syaoran (I think? TRC confuses me even more than xxxHolic does) left, there wouldn't be any alternate versions of him, right?
As a shipper of 104, I have to wonder, what's the implication of that for alternate versions of Doumeki? Yuuko talks about them having a strong bond and being linked by hitsuzen and such, so if Watanuki doesn't exist in other worlds, is Doumeki just alone?
2) When Watanuki got hurt and Doumeki paid for him to live in the same amount of blood that he lost, was that a literal exchange? As in, was Doumeki's blood mystically transferred into Watanuki's body? (I'm going to ignore the medical implications of blood type for the sake of suspension of belief.)
If so, did Watanuki then become less tasty to spirits? Or... not as alluring, at least. To the point where they wouldn't chase him down on the street anymore. I can't remember if anything to this effect happened after the window incident.
Or was it more of a mystical exchange- as in, Doumeki lost the same amount of blood that Watanuki did and thus Watanuki's blood was replenished?
tl;dr:
1) If there are no alternate Watanuki's (since he's an anomaly), what happens to alternate Doumeki's?
2) Does having Doumeki's blood make Watanuki less tasty?
Thoughts? =)