Why My Domineering Prince Regretted Filing for Divorce?

He said: We can divorce.She said: No, I want to be your father's daughter-in-law!When all the dust settled, she finally managed to protect her entire family amidst the upheaval of changing dynasties.Princess Qin: Your Highness, can we divorce now?King Qin: Don't even think about it~!PS: Set in an alternate history of the Tang Dynasty~[The talented and skilled fallen noble Miss VS the domineering King Qin who dotes on his daughter-in-law on his father's orders]