Qu Jing was so eager to start a faction rivalry, mainly because of her own insecurities; she wasn't in her position fairly and naturally felt threatened.
But Tao Tian didn't have such feelings of crisis. She was confident of her own figure, being the type Zhou Yuwen liked. As long as she maintained her figure, keeping herself in optimal condition, she believed that even doing nothing, Zhou Yuwen would exclusively favor her. Why should she mess around with Qu Jing's tricks?
Besides, you've tricked me once already, Qu Jing.
You think I'd be stupid enough to follow you down the same dark path again?
Qu Jing's attempt to form an alliance failed, and she had no choice but to seek another way.
As for Zhou Yuwen, he really wanted to continue spending the night with Tao Tian tonight, but Tao Tian had a lot going on, so he couldn't. That's when he remembered the girls he hadn't contacted in a long time, like Zheng Yanyan and the others.