That there had been another Demyx around - or the same him, possibly, with memories he no longer had - was an idea he'd never really get used to. It made things even more confusing than usual. "They just had hearts - given to them?" he repeated, disbelievingly. "Is that even possible?" Demyx knew full well he didn't understand the complexities of how Nobodies worked - probably understood less of them than any of the others, even, since he'd never really tried to - but he was sure recovering their hearts couldn't be that simple. If it were, then the original six probably would have to have been idiots not to have figured it out by now, and whatever Demyx thought of Xemnas and Xigbar and the others, he knew they weren't idiots.

But the thought of Axel, with his heart back...that was a tough one. Was he supposed to feel happy for his friend, or jealous? Could he be both at once? Some emotional complexities even he had forgotten.

Still, there were more important things to talk about. "But...that won't work," he said, frowning. "Not for sure. I mean, I was around before, right? And I never got a heart...did I? Plus I just wound up coming back here. So what happens if you don't get your hearts back before they turn you loose? Or if they just drag you back here?" Maybe he was missing something.

And then somehow Xigbar and Luxord changed the subject on him. Were talking over his head about it, too. Demyx huffed quietly to himself, glancing between them. "What're you two talking about?" Actually, he had an uncomfortable feeling he already knew - he was oblivious, but he wasn't totally dense, and he was pretty familiar with how the other Nobodies' minds worked.