The implication that Darth Vader had demonstrated concern for her is one hell of a thing to come to terms with, so much so that for a moment Rey feels as though she might burst into either hysterical laughter or tears over the way it makes her feel. She's already so overwhelmed by everything she'd just experienced that it's almost one thing too many. But, once again, she finds Kylo's words pulling her back from that hysterical edge.

"You still trust the Force when it comes to our connection? Enough to tell him about it in a way that didn't make him immediately despise me?"

It's surprising, considering how few positive interactions they'd had, even here. She'd spoken reasonably kindly of Kylo to Luke when she'd explained things, then, but she hadn't been willing to let go of her anger at him back then, either. Or at the older Luke, for that matter. She supposes it's not so strange to think that Kylo would've done the same, even angry.