Xiao'er wanted to speak up for Jiang Yuheng, but she can't reveal in front of everyone that she saw the young lady clinging to him, and that Jiang Yuheng had clearly and firmly rejected her already.
That would mean revealing that she and Shangguan Xuanyi had seen him long ago! If so, why didn't they bring him back to the Imperial City at the time?
In any case, she can't testify! Otherwise, she would have to explain a lot of things!
There would also be a snowball effect of lies, requiring countless more lies to uphold them.
Xiao'er was thinking about how to help the Fifth Princess and Jiang Yuheng out of their current predicament.
Upon hearing Jiang Yuheng's words, the crowd burst into discussion: "This lady has no shame, she's interested in our royal son-in-law, but he had clearly said that he doesn't like her, yet she clings onto him now that she's old and couldn't get married!