Blind Feelings

Zhai Yanjun didn't say anything to defend his father in front of his grandfather. He didn't think there was anything he had to say right now. No matter what he said, it'd be pointless. His mind was in turmoil anyway. He didn't think he'd be able to speak rationally right now. He might also lose control of his emotions like his father did earlier.

So, after knowing that his grandfather was doing fine, he left the guestroom. He recalled the conversation between his grandparents and snickered. It seemed even if they knew the truth, they turned a blind eye to everything. 

Did they say they were protecting his aunt?