. . . Ennis could play the ball as he wished. He could have taken this chance to really solidify his relationship with Jack, make it something permanent. OR, he could do what he did and turn Jack away . . .
Don't you think it's actually much more complicated than this? The subtle complexity of this one situation is so emblematic of their relationship, especially the lack of communication by both E&J. Ennis, torn between his own blood, who he hasn't seen in two months (because of his job - sound familiar?), and time with Jack; Jack gets a postcard and bang, he's off like a shot for WY, can't call Ennis, he doesn't even know where he lives, but expects everything to work out fine on the spot when he shows without warning. Even though he's not expected till the next month. This is a brilliant screenplay construction to me, considering the only thing in the SS was one sentence . . .
"He called Jack's number in Childress, something he had done only once before, when Alma divorced him, and Jack had misunderstood the reason for the call, had driven twelve hundred miles north for nothing." Jack's the chance taker, FNIT there's a
real chance, and Ennis is the 'by the book' guy. The plan for weekend (w/the girls) had been laid out and he was just going by the script. I think they
both fumbled IMHO. Jack's known Ennis for what, 12 years by this time, and he thinks he can just show up and Ennis will drop everything for some high altitude fun? Huh? Ennis sees how happy Jack is to see him (toot, toot, toot, sounds like horns honking after a wedding), and yet he can't think of nuthin' to resolve the situation and lets Jack drive off crushed. I'm not sure Ennis isn't crushed too, having to make that kind of decision, I think his face shows inner torment.
To me McMurtry and Ossana cleverly extended the boys confused emotions from the SS 1967 motel scene - "
I doubt there's nothin now we can do," said Ennis. "What I'm sayin', Jack, I built a life up in them years. Love my little girls. . . . . We can't. I'm stuck with what I got, caught in my own loop. Can't get out of it. - they've shown that E&J continued that same confused emotional state from '67 to '75. All the way to end really. JMHO