I don't have to be told over and over in printed cyber-text about the screenplay writers and the movie director using artistic license to do whatever they wanted in adapting Annie Proulx's original short story.
IMO, in some cases, their used their artistic licenses to drive completely away from what Annie Proulx originally wrote.
What happens in Texas in the AP version is just talked about by the story's narrator or by Jack himself until the only time that Lureen even speaks. And, when she does, it is because Ennis called Jack's Texas phone number and she answered.
I am not stupidly igorant! Oh, I have seen movies which had in the credits, "adapted from _________'s novel (or story) but, the only thing in the movie's final cut that had been adapted from the original story was the title.