I wonder if anyone considered this scenario:
Chapter 214 of TRC: Yuuko is found struggling to hang onto every breath as Fei Wong says "That final choice will cause one who also placed one foot into the valley of death and was frozen in time at that very instant in the same way to be called back." Although it seems she may have a plan in the next chapter, I do wonder what on earth she has done that has stuck her into the position she is in as we speak. Relate this to Chapter 174 of xxxHolic with Watanuki's last conversation with Yuuko. The two seem to parallel with one another. Don't take my word for it, but I have a grave feeling that this situation is foreshadowing the end of Yuuko. I certainly hope not. Then again, knowing CLAMP, the crossover may be decieving. Let us hope for the best after such a long journey in both worlds. =D
Even with a thick skull, Watanuki has a golden heart. I wouldn't be surprised if he refused to back down until he fulfilled his goal to make the woman turn over a new leaf. The analogy stating Yuuko as a butterfly according to Watanuki has stuck like glue to my head. What is her wish? And what is her price for it? Looking forward to the next chapters~!