```
But when conversation reached this point, everyone knew it was time to end the topic.
Xiao Liulang went back to the next room.
Liao Quan came over from the corridor: "My lord."
"Ah," the old Master of Sacrificial Wine sighed, "why is he so stubborn?"
Liao Quan had already learned of Xiao Liulang's identity, but he still didn't quite understand what the old master meant: "Why does my lord say this?"
The Master of Sacrificial Wine waved his hand: "Never mind, it's nothing."
...
After Xiao Liulang returned to his own mansion, he plunged into the study. He casually shut the door behind him, didn't light the candle, and just stood there alone in the endless night.
He understood what his teacher wanted to ask.
—Why didn't you tell Princess Xinyang that you're back?