Han Leng was a tsundere. He often told himself that he could not care less about whether Lady Zhao got into a relationship with other guys. If Lady Zhao could bid farewell to her 'single' status, he would finally be free. However, after he discovered a certain senior's intentions of pursuing Lady Zhao, only then did he realize that he actually cared very much about her still.
Humans are like so. They are never rational, never logical.
However, after Han Leng silently listened to Lady Zhao's response, he became relieved. He scolded himself in his heart. Why did he not have any self-control...
As Lady Zhao made a mockery out of the question, Han Leng found himself more entranced than ever. He knew that if he did the same thing, he would be shot down like this too.