LitCharts assigns a color and icon to each theme in A Farewell to Arms, which you can use to track the themes throughout the work.
War
Love and Loss
Reality vs. Fantasy
Self vs. Duty
Manhood
Religion
Summary
Analysis
In January, the weather turns sharp and cold. Henry's beard has grown in. One day, as they rest at an inn during a walk, they agree that they don't miss seeing other people. They worry that the baby, "that little brat," might interfere with their isolation and come between them.
Henry and Catherine's relationship is too insular by now to make room for anyone, even their own child.