Any mediator does not relate to Li Fei; it's an absolutely independent existence. Li Fei will never be anyone's hunting dog, seeking a patron for his own purposes like others do—that is absolutely impossible.
Li Fei's pride would not allow it, and it is precisely because of such pride that the affairs of Jingcheng have evolved into the current situation. Nevertheless, Li Fei does seek cooperation at some key moments, like now with the Chu Family and previously with Sun Mingyuan. This concept applied to his actions in Pengcheng as well; it's just that now Li Fei has his own ideas about many things.
Among these ideas, there's always a reason that serves as an explanation. Right now, it seems quite clear to Li Fei that Chu Tianyang is trying to take advantage of the situation more than he should.