Yes atz75, TJ...
This is a good thread to begin. And you're right, atz75, about the "two Ennis-es". I'm remembering too that in the movie Ennis has other ways of displaying his affection and love for Jack. He often has a sly humor that is really affection. He says stuff like ~ You're gonna run them sheep off again if you don't quit playin’ that harmonica! ~ I'm paraphrasing here...
In the movie we can see Ennis's expressions of affection, his sly smile, his sideways glances; Ennis, in both book and movie, is often very subtle: ~ He laughed a little, You probably deserve it....~ This he said when Jack admitted an affair with a rancher's wife. In the book there is naturally more description of the characters and the land. In the movie, we are given images of both and more dialogue.
The two art forms are so different.
I remember in the book how different the night before the blow up scene is too. It says, "Ennis put his arm around Jack, pulled him close." That is far more convincing that the movie version where when Jack says, "Tell you what, sometimes I miss you so much I can hardly stand it." and Ennis does nothing. I always thought that was strange, almost cold on his part.
So, yes, there are two rather different men in the book for sure. Two similar but different tales.
Rayn