Bel isn't sure he wants to go either to seek Terra or Cordelia's favor. He could understand a show of acrobatics (or at least sheer stubbornness) for air, but he isn't sure what the other two queens want from him. And Bel doesn't like it when a woman in power might expect something from him and he doesn't know what it is. (Even less than when he knows what it is and doesn't want to give it; at least then he can make an informed choice.)

He does catch Barcus leaving and offers a nod. "Gardens not to your liking?" He knows Barcus is affiliated with Dryad, so maybe the gnome has more insight.