If Rey can keep up the mental resistance and Kylo keeps preferring bad ideas and losing their temper, I don't think there's anything to worry about for intel leaking. That's the plus side. The downside is that the only things keeping Rey alive are her knowledge of where the map likely is and Kylo's potential interest in turning her to the Dark Side. If Nute decides to tell Snoke that Rey has been captured or Snoke figures it out by themself, what's to stop an underling with ambitions of promotions from killing her?

Rey deserves to know what? That she's already got a destiny in spite of what's been said? That Zeppo isn't actually her dad? That she was adopted by both of them? That she's actually a modified clone of Luke or Anakin? A secret cyborg in addition to any one of those things? Hm, I could actually see the clone thing for the comic; assuming the Muppets improv is canon with the cloning shenanigans, that could make old woman Jira's comment much more interesting. Or maybe these are all too "out-there" for ideas and it's something less silly like: they know Rey stole the Falcon to go off on an adventure for the Resistance, but they would have given it to her anyway if she'd just asked.

Movie-wise, I've no firm ideas on what they could be talking about, but I hope it's still figuring out a rescue. Han looks concerned enough for that at least.