Chapter 324: Level nine rider?

What's the meaning?
This woman said in front of Mr. Zhou that she was interested in another man?
Everyone subconsciously looked at Zhou Changying's face, and saw that the latter had an extremely ugly expression and said: "Tunan..."
"What's wrong?" Xue Tunan's eyes kept moving, and he asked in a slightly mischievous tone: "Are you jealous?"
Zhou Changying said without hiding anything: "Yes, I am jealous, so don't you think you should give me a reasonable explanation?"
"Don't worry."...