Exactly¡ But maybe wasn't Jack having several sudden awakenings of this dream they have forged?.I mean,every time he received a "no" from Ennis,was like a hard awakening or a dream turned into a nightmare.Maybe,however,the LC was the rudest awakening they must have; but also-or because of this...-to be face to face with reality and with the need of finding a solution for a "charm" that was lasting too much and that too often crashed with the hardness of their real life.
I think Jack is, as you said, experienced when it comes to the several occurances of this rude awakening of his dream turned into a nightmare. As it is said in the short story, after Jack proposed the cow and calf operation in Motel Siesta, "you owe me at least a weekend after shooting me down in flames." I am paraphrasing a bit since I don't have the short story with me at the moment. Even in the movie, without the words, Jack was heartbroken by the river, not only for the dream that was shattered by Ennis' refusal, but also for the pain that he felt, looking at Ennis as he retold the trauma of his nine-year-old self witnessing a hate crime.
I think Jack is almost complacent, accustomed to being rejected by the time of the final confrontation. He felt angry at the short leash and was yanking at it. To his surprise, Ennis felt apart. We never heard nothing more after "It's because of you that I am like this." But I can just imagine Jack saying the same thing, and that silently, in his heart, he probably said to himself, while hugging the collapsed Ennis, that, "Ain't that the truth. It is because of
YOU that I am like this." "Dame you, Ennis."
As it was said, in the short story, nothing changed, nothing settled. Let be. Let be.
The two lived on the surreal memories of that summer on Brokeback Mountain; they made each other that way.
Jack could never quit Ennis; Ennis loved no other but Jack.
Whether they knew it or admit it or not, they are stuck with each other.