Okay, I need to process what this chapter is saying about women's bodies and control, because it's hitting different.
The central symbol is obviously the menstrual cycle — or rather, the LIE about it. Jiang Mei uses her period as an excuse to avoid intimacy with Pei Jingchuan, but the irony is that it's also a symbol of everything she can't control. Her body has been used, manipulated, harmed by contraceptive decoctions. The Flower House girls endured agony every time. And now she's using that same bodily reality as a shield.
But here's the deeper layer: Pei Jingchuan REMEMBERS her pain. He warmed her abdomen with his hands. He sent medicine. He asks if her husband knows about her suffering. This is a man who has every reason to want to hurt her, but his body remembers how to care for her body. The symbolism here is uncomfortable — his care is real, but it's also possessive. He's caring for something he claims to own.
The clothes she's wearing are also significant — the same clothes she married Zhou Hongyuan in, and she won't dirty them. These clothes represent the life she built, the identity she's constructed, and she's protecting it even while sitting in a carriage with the man she wronged.
And the golden board — the imperial examination success — that's another symbol. Zhou Hongyuan talking about it with such hope, while Pei Jingchuan already has power and status. The examination represents upward mobility, but also the trap of ambition. Jiang Mei said those things about the golden board to survive, but they're also true desires she's suppressed.
The whole chapter is about bodies in confinement — the carriage, the corridor, the clinic — and how women's bodies become sites of control, care, and survival.