I wouldn't call anyone who felt that Ennis had to be punished for the rest of his life to be sentimental in any way. Coldhearted yes.
Ahhh, but they would tell you he is not being punished. He is "rebuilding" his life around "his children" and "the land." He is finding "happiness" and "satisfaction" and even "love" in these things. Never mind that the man is 41 with, what I would discern from the movie and the story, a healthy sex drive. The rebuilding sentamentalists would tell you that is is completely normal for a man of this age to become celibate and carry a candle for the memory of his lost love for the rest of his life.
Yeah, right.