[He knows that, ultimately, she doesn't have any say in the matter. And that equally as ultimately, it will always be an option on the table. But he hates thinking about that. About how one day, she could very well be taken back home and there's nothing John would be able to do about it.]

[But if he doesn't think about it...]

And I promise the same for you so... it'll be okay. Not right this second or anything but eventually. Eventually it will all be okay again, Rose. You'll see.