He had no need to ask the Doctor why he refused to speak of his past. His dreams made it clear that the Doctor's family and home were gone. More than simply gone, more permanent than death. He was inclined to demand to know which of his memories were his own...and yet...perhaps he could still cling to some small amount of denial without that knowledge.
He deflated somewhat, as his gaze dropped to the floor for a few moments, before he glanced back at the Doctor, wary. "You...possess the memories I made? When I saw those...those things. That life. Tell me, what did I see?"