Diz and Riku's lost faces
Unknowingly he'll run his fingers over the bandages feeling bumps and crevices where his features are and he'll stop himself. There is a reason why his face is covered.
Riku has seen him like this a hundred times over and yet he has never said a word, never tried to stop him, never did it himself. He just watches coldly with the eyes of another man. But Riku has always been that way since he first cast himself at Diz's door, giving up everything for Sora once again. Still...there is something different. An almost pitiful gaze when he looks at Diz.
And Riku's digging into him again, trying to give back Ansem so he'll be Riku again, but he's not Ansem he's Diz.
Riku's stolen face is his own, looking back at him. A man so engrossed in his work that he begins to love it above all things, even his own heart. But that face is Ansem's not his, but how can he tell when he doesn't know his own face?
Sometimes he feels like Ansem. He feels it when he's sifting through Sora's memories and he hears a name that was stolen and sees a face to which it never belonged.
Riku wears Ansem's face as nothing more than a mask but Diz is his own mask.