IF Shen Ji Yun was the one driving, he would have probably stepped on the break the moment he heard what his uncle said. He glanced at the other. His uncle had a carefree look on his face, as if he had finally let go of a heavy burden he had been carrying for a long time. And maybe he was.
There was no way that his uncle was joking just now. So, it's natural to think that the other really did just come out of the closet. Added that to the fact that he stormed out of his grandfather's study and the reaction of his elder uncle, then there's no doubt that he indeed just dropped the 'bomb' in the study.
If that was the case, then it was no wonder that he looked so liberated. It was a secret that his uncle had harbored for decades. And now, he was finally able to let it out.