Why he feels obligated, he's not certain. Perhaps there's some loyalty there, even after York pulled him and threw him aside as he had. AI are not something he's terribly familiar with.

His expression, instead, goes carefully blank. "...there's no need for that now."

He knows what he is, what he's done. York needs no monsters in his life, they'd all be better off without him, he can't...

The thoughts are brushed aside for the moment.

"I take it he made no such commitment to speak with you."