Your Explanation

When Chaoyan refused to meet him, she was obviously stuck with some emotional problems.

After speaking with Chaoyan, he understood that it was not because of his own mistake, but because of something else. And Zhao Yiqiu had talked with her before.

The reason why Sword One asked Zhao Yiqiu to check on Chaoyan was probably because Chaoyan was physically troubled. When his hidden guards came to him, the message they passed on was that Lady Chaoyan had fallen ill, but when he saw Chaoyan a minute ago and felt her forehead, he could tell that she was not suffering from a cold, and she looked pretty normal in expression too. So what happened, honestly? What was wrong with her body?

He had to ask Zhao Yiqiu about this - they could come up with a method together, if there was really something wrong with her.

He hurried all the way to Zhao Yiqiu.