They weren't joking with you, they were forcing you to compromise immediately, otherwise they would immediately change the three generations' relationship between the Gong family and Yue Qianxing.
Doing this also means cutting off the marriage alliance between the Gong family and the Yue Family Long Pavilion instantly, and there would be no turning back.
The Gong family could not let Yue Qianxing return alive anymore.
In short, this counterattack caught the Gong family off guard, leaving Gong Youxiang powerless to respond, hence seeking advice.
Yet Liu Guang also had no choice, knowing the series of severe consequences this scandal would bring. After pondering repeatedly, he admitted his mistake, "It was too reckless of this old servant, I didn't expect Shi Chun to see through the hidden trick of the 'Yiling Egg,' now he doesn't even show his face, making it difficult to act against him again. Now, we can only ask the Holy Lady for her intervention."
