In Lu Jinnan's heart, Cai Jingyao was indeed not a good person. It wasn't that he only started feeling this way since he got together with Bai Xiaonian. But early on, when he heard Lu Jinbei cry as he recounted the reason he broke up with Bai Xiaonian, Lu Jinnan had sensed that this so-called best friend of Bai Xiaonian was a green tea b*tch.
Perhaps before getting together with Bai Xiaonian, Lu Jinnan had felt that all women were bad and that he had excellent judgment in determining if someone was a b*tch. He had even hurt Lin Nuan by accident back then because of this.