What does mrs. Burden thinks about the changes in Antonia since her father's death specifically?

When Ántonia runs up to Jim sobbing, once again it is her emotions that come to the forefront of the narrative. Through Ántonia's behavior and reactions, we get a sense of how deep a tragedy Mr. Shimerda's suicide really is, and we realize how close the affective ties between Ántonia and Jim are. Jim appreciates Mr. Shimerda's death more on an intellectual, abstract level, whereas through Ántonia's grief, we appreciate the emotional depth of her and her family's despair.