From Damu Anna's perspective, why was Mavshibai's accusation of him trying to kiss her so infuriating?

Damu Anna, described in Chapter 24 as a man over fifty with no teeth, was infuriated by Mavshibai's accusation because he felt it was baseless and made him look foolish. He was quietly serving Baba by pressing his hand when Mavshibai, due to her own vigorous movements, brought her face close to his. Her subsequent jest, "Have you no shame for your gray hair? You are trying to kiss me!" felt like a direct and unfair attack. He retorted angrily, calling out that he was not a "fool or completely mad" and that she was the one who initiated the proximity. His anger stemmed from being publicly and wrongly blamed for an awkward situation that she herself had created.