What were some interesting things Jim did?

In the Willa Cather novel, My Antonia, the author creates the narrator, Jim. Jim finds himself an observor and commentator on the action taking place in the novel. Jim is not interested in the girls that his family think he should be interested in. He is intrigued by the girls considered beneath him in social class, or who are much older than he. We watch as he makes choices that don't always (or mostly) make anyone but society happy. We realize that the most when he comes back to visit after 20 years and learns of her tragic marriage. He realizes that he has feelings for her, but does nothing about it. Later, when he comes back again to visit he sees her happy with many children and grandchildren around her and it marks a solid contrast to the sterile and loveless life he's led.