The matter with the Shi Family back then was just Su Xinyi's own suspicion, and now that their family had severed ties with Shi Zhongqian, they would certainly not get the information she wanted from him, so she couldn't bring it up.
The affair involving Aunt Weng and her daughters was just right.
Su Xinyi understood the whole affair very well, so she started with what she had heard during her last visit to her maiden home about Su Xixian wanting to take Aunt Weng to her estate, which was a reasonable entry point for the topic.
At first, Su Xinyi hadn't been too suspicious when Su Xixian wanted to take Aunt Weng with her, thinking only that Su Xixian was showing filial piety. It was only later, when her family mentioned an incident involving Aunt Weng's entourage, that she started to connect the dots.
Of course, these issues also involved other matters, and Su Xinyi couldn't very well explain them all, so she could only talk about what she could.
