Anyone would want to exist instead of not doing so, and a heart definitely wasn't required for that.

"If I can't ever leave and he really can't come here, then..." Then what? Demyx hadn't been out of the Organization for years.

He was a little thrown as to what he was supposed to do with himself. Dragging his feet all the way, he'd had a set pace, a day to day life to follow, regimented to some degree, and he'd been there since he was younger than Roxas. The prospect was daunting.

"I'm fine if he can't." He confessed softly, digging his toe in the dirt. If Xemnas did appear, he'd have to return to his side.