There is a subtle hint of doubt about their relationship here, like Jack is not so confident it's going to last forever, as much as he would like it to, and that's so in-character.

It would be very in character, I think, considering Jack's life to date, but like you I think they'll work it all out. I expect it'll be a pleasant surprise for both of them, really.

I'm so glad you liked this! Thank you, as always, for your wonderfully thoughtful comments. They are so very much appreciated!