What does it feel like to betray someone who trusts you wholeheartedly? If you are used to it, then there is no sense to think about it.
Then if not, you will feel that every word that was spoken, every action that has done even the tiny ones may cause for the betrayal to be exposed.
You will always feel that you are being watched; feeling too anxious while watching out if someone will suddenly call you a liar.
These are exactly what he feels. The longer Yu Qiao stays in the same room as Mo Che, the more his conscience is eating him. He is not even paying attention to what his godfather is talking about.
Not only he is hiding Mo Lihua's boyfriend that she seems to want to badly keep, but Yu Qiao is also not confident that if his godfather will find something amiss. Would the man realize that he fantasized his daughter in a very inappropriate way?