What are sofia and harpo arguing about when celie arrives?

When Celie arrives, Sofia and Harpo are arguing about Harpo's attempts to control Sofia and make her submissive, as he believes this is how to maintain their marriage. Sofia, fiercely independent and strong-willed, resists Harpo's efforts, leading to a conflict between them over gender roles and expectations. This disagreement highlights the tension between traditional views of marriage and Sofia's desire for autonomy.