Disclaimer: I'm obviously don't own xxxHOLiC.
When the story ended in angst, does that means the whole plot is melted in tears?
The story line that isn't supposed to be ended in laughter, should it begin with something different for the sake of the happy ending?
… Happy ending, define it.
For him, any which isn't brought much different, at all. Her disappearance wasn't something to do with happy ending. It's not an ending for him after all. And for the rest of people, she has forgotten, she did never exist. She just a dream that wouldn't ever came true, not in their world for insist.
She was a part of him, and his was hers. And together they brought in some memories with people who cared. People, who closed enough to understand, people who lived in a dream.
…If you willing to protect that wish of her, you've to promise to yourself that you would never make her cry…
He did not know that.
…Watanuki-kun, I love you…
It's too late for that, he supposed. But those feelings aren't fakes. He knows that.
…This ignorant guy will leave if he wanted to…
'Yeah, correct. You are an ignorant all right.'
…My only wish was for you to keep alive…
He watched her disappeared. And there he left murmuring something he has decided at the very moment.
He will grant that wish.
'If a strong wish could grant a dream, I am willing to see you again, Yúko-san.'
And there he waited, at the place he assured she will never lose to find.