Su Qingsang didn't pay any attention to Huo Jinyao at all. When she saw Zuo Hongchen, she remembered the time she first entered the hospital, as an intern.
Time passed by faster than anybody knew. She had graduated from graduate school in the blink of an eye and Hongchen was about to get his Ph.D.
She was so busy feeling sentimental about the past, that she didn't notice that Huo Jinyao was smiling because she hadn't tensed up.
Zuo Hongchen obviously saw the smile on Huo Jinyao's face as well and, for some reason, he thought it was an eyesore.
In addition, Su Qingsang's reaction made him feel even worse. The man was tall and handsome and his wife was elegant and lovely. It did not feel good make him feel good to see her standing by Huo Jinyao's side.
He didn't want to keep looking at them so he went into the restaurant first.