From Damu Anna's perspective, why did he become so angry with Mavshibai?

Damu Anna, an elderly man who had crossed fifty and had no teeth, became angry due to what he perceived as an unjust accusation. According to Chapter 24, he was quietly pressing Baba's left hand when he witnessed Mavshibai's vigorous service, which he found pitiful. As she swayed, her face came close to his, and she jokingly accused him of trying to kiss her, saying, "Have you no shame for your gray hair?" Anna felt deeply insulted by this. He retorted, "Am I such an old man? Am I a fool or completely mad?" From his perspective, she had initiated the closeness and was now unfairly trying to start a quarrel, which prompted him to roll up his sleeves in anger.