What are two supporting examples of Callaghan uses indirect characterization to create tension between the two character?

In the short story "All the Years of Her Life," Callaghan indirectly characterizes Alfred through his overprotective behavior towards Mrs. Higgins, by carefully guarding the store keys and monitoring her movements. This creates tension as Mrs. Higgins feels suffocated by Alfred's controlling nature. Additionally, Callaghan uses indirect characterization to portray Alfred's internal conflict and struggle between his loyalty to his mother and his desire for independence, which further heightens the tension between the two characters.