Yes, this is so true. For Ennis to "come out " as far as he did ( the reunion kiss) with Jack was a strech for him. He was so Inward with his feelins partly due to his childhood nightmare of Earl and Ray, imposed on him by his father. As a child being shaped and molded to conform to a culture that stifled emotions in men, he withdrew. This is where Jack was so important to him and his life . Highspirted, outgoing, and aggressive Ennis saw in Jack a man who went after what he wanted. unlike himself, not afraid to take chances, even though they did'nt pay off a lot of the time.
Jack's handling of rejection did'nt shut him down like it did Ennis whereas Ennis's idea of dealing with rejection was turning it inward into himself and he went off somewhere and brooded and sulked over it alone. Punishing himself came easy for him. Being with Jack comforted him I beleive because he knew Jack would'nt reject him no matter how much he punished and hated himself. This is very evident after FNIT. Jack knew and understood Ennis very well.
Following the divorce even Jack, with all his hopefullness began to realized that Ennis was going to be a harder nut to crack than even he thought possible. Alma was now out of the picture and yet he still could'nt completly break Ennis, But because of his love for em, he still did'nt give up. Regrettably he went to Mexico seeking the sexual comforting he needed from Ennis that weekend , and maybe promises of a new life for both.. He was also mad as hell and this was a way to punish Ennis for rejecting him. I wanted to slap some sense into Ennis during this scene.ARRRRGGGGHHHH!!!! How in the hell could anyone turn this dream down with such a cutie. Crazy! and Unfortunate. Shit , I'm rambling again. My 2 cents.