What does my husband's sister-in-law always call me a fool?

Think you are not smart. Husband's sister-in-law is also your relative, and you are a sister-in-law relationship. She always says you are a fool because she thinks you are not smart, which is an objective evaluation of you. She thinks you look stupid. Sometimes a woman says you are stupid, but in fact she has another subtext, that is, she thinks you are cute. Fool, whose Chinese name is stupid, confused and unreasonable, comes from A Dream of Red Mansions.