Look at what you're saying. Elder Su at most let her follow to help, there's no way she said that last part. Zu Mei has a grudge against Bai Ruozhu, that's why she's deliberately stirring trouble.
Bai Ruozhu glanced at her indifferently. She neither disliked nor liked Zu Mei. She even felt a bit of sympathy for Zu Mei, seeing her as a victim of past events. But she also looked down on Zu Mei for targeting Ao Song with such a vindictive attitude. Why drag innocent younger generations into their elders' grudges?
Moreover, Zu Mei must already know what her mother did, yet she refuses to admit her mistakes. Now that she has a husband, can't she just let go of the past?
If she keeps obsessing over it, it will only make her current husband think she hasn't forgotten her ex-husband, creating a rift in their relationship.
