It’s framed as a bit of a tragedy that Beatrice so easily minimizes Lonna’s inappropriate behavior. This shows Roy how unfortunately common it is for Lonna to be rude to Beatrice, and how common it is for Beatrice to have to actually fight back against her stepmother. It’s even more tragic, then, as Beatrice explains how the fight over the weekend came to pass. Leon reads as well-meaning but impotent, which is certainly better than Lonna but still leaves Beatrice functionally alone. In many ways, his behavior makes Beatrice the only real adult in the house—especially since she implies that Leon essentially counts on her protection from his wife.