Mrs. Shen was merely speculating and not too certain.
"Xiuxiu, your elder brother hasn't mentioned this to me himself; it's Mom's conjecture," said Mrs. Shen with a single sentence, and the joy on Su Ningxiu's face immediately wilted.
She had thought her big brother really had someone he liked! But it turned out to be her mother's guess. Su Ningxiu's enthusiasm waned, but Su Yunjin looked at Mrs. Shen and asked, "Mom, how did you figure out that big brother has someone he likes?" If this matter had no basis, her mother definitely wouldn't say such a thing.
At Su Yunjin's questioning, Mrs. Shen described the issue with the handkerchief to Su Yunjin in detail. After listening, Su Ningxiu's eyes lit up again, "Mom, if it's really as you just said, then big brother must have someone he likes outside." If her big brother didn't like someone else, why would he hide another person's handkerchief and place it next to his skin under his clothes?