As "no more beans" can be seen as Jack's way of saying that he doesn't intend sticking to the rules any more - is this the point where he decides to go for it with Ennis?
My favorite quotation, "See you in the morning"., also has deeper meanings IMO. This is Ennis's way of saying that he'll be there when Jack comes, as in fact in future he always is, that there is a tomorrow.
And it's what lovers say - when you part and want to make sure that it's only temporary.The irony in the movie, of course, is that after this Jack doesn't see Ennis again.
It's also a reminder, given where it's placed, that we should make the most of today, because tomorrow is something we can never make rely on, whatever promises we make. Carpe diem again.