Yep, thats definitely one, Esme.
Here's a few of mine:
1. The whole way through the motel scene, every time Jack says something even vaguely romantic, Ennis strokes his arm. He doesn't have the words to say what he feels, but he shows it.
2. "Sending up a prayer of thanks" - we know what for, Jack knows what for, but Ennis can't say it so he makes a joke then winks and smiles to show what he's really thinking.
3. "Ain't no reins on this one" - close as he ever comes to telling Jack he loves him, by telling him that he knows this thing can't be controlled, that it's beyond that.
4. The smile on his face when he arrives at the mountain (the "blue parka" meeting!) - his whole face lights up when he sees Jack is already there.
There's loads more I can think of, but that's a start.