"Yes, Grandpa knows your character the best. You're stubborn. Once you've decided on something, you'll never change it for the rest of your life. The two of you were childhood sweethearts. Since you've decided on him, how could you accept another man? How could you fall in love with another man? In the end, Grandpa was wrong. Wuyou, no matter what reason you broke up with him back then, go find him now. After so many years, there's no problem that can't be solved."
This was the most important reason for Elder Chu to change his mind. After so many years, that man's feelings for Wuyou were still the same as before, so Grandfather no longer stopped him, even though he had done such a thing to the Chu family.
For the sake of Wuyou's happiness, he did not pursue the matter. After all, there was a cause and effect for this matter.