[ As Rhys explains, the worry quickly makes sense, but it surprises Jack. He'd half figured that Rhys wouldn't take his warning to heart, not because he thought Rhys didn't trust his word, but more that he just struck Jack as the kind of guy that still thinks of himself as invincible, at least in a way. Which is admittedly weird, considering how Rhys had insisted about how Jack would kill him eventually, but that thought immediately pulls at what had gotten Jack to make a promise against that in the first place. ]

Hey-- Look, meant to just point it out, not to, I don't know, scare you.

[ Jack hesitates, since being the one to reach out and touch Rhys was probably toeing over a line he's drawn for himself in the sand, and he knows it. But still, that part of Jack that so genuinely wants to do good and help people makes him decide that it's a line worth stepping over. He reaches out to place a hand on Rhys's shoulder, and it's a weight meant to be reassuring. ]

You're... seriously worried about it, aren't you?

[ It sounds like a rude question, but Jack is genuinely asking. It's not hard to see where this conversation is going, but the prospect of it is something that's a very different expression of trust than a hand on the shoulder. It's not even something that's coming from this weird situation. Trust is still something of a sore issue for Jack after killing the Merriff only a few days ago. ]