"Mutual checks and balances then!"
After Rong Heng's explanation, she realized that it was because Consort De had Rong Heng, that she was able to secure her position as a concubine.
It was only when the two of them were in good terms that the Cao Family could last long. If it hadn't been for Cao Bingkun's timely intervention, the foolish act performed by Cao Xuehua would have led to the Imperial Censor making a big fuss about favoritism. By then, it would be too late for regrets, so marrying his daughter far away was the biggest punishment he could give.
This also indirectly proved the Cao Family's wariness towards Rong Heng, while at the same time, served as a warning to them, didn't it?
If your daughter could use this relationship to show off everywhere, what about the other members of the Cao Family? Cao Bingkun would not have allowed his relatives to cause trouble in this regard if he had had even a bit of discernment.
