That line of questioning tells him enough to give him the answer to the question he hadn't voiced. His own reply is just as guarded.

"I do. But she doesn't." He'd solidified that false story himself, though he hadn't realised it at the time. He had seen that her parents abandoned her. The story of why, in retrospect, might have been a falsehood drawn from her own fears rather than from the truth.

"Her parents left her there. I saw a vision... I thought they'd sold her for their own selfish reasons. It seems they were trying to keep her hidden, instead." He can't say his opinion of Rey's parents has improved terribly much since he'd learned that, considering the life they'd left her.