She does think, for a moment, that he's lost interest at least for the time-being. But that thought is cut short and Himeka is left with the reality that a Zenos unsatisfied is a dangerous one, content though he states he is with the current situation.

It's hard to find such appraisals flattering even though she realizes in his strange worldview, they are. She's still trying to reconcile what felt like almost genuine happiness coming from him only moments ago with this same desire.

She can take a guess as to what he's trying to do--either garner a reaction or a little information as to her situation or that of the Pleroma in general. She may have let Estinien slip through but she will do her best to obscure the faces of others and try not to think of them individually. Zenos may receive vague blurry snapshots generic crowds in Godsblood or greenery of the forest. Himeka tries to keep her thoughts on him instead.

"Are you really?" Might as well challenge the thought. "I'd have thought that you were tired of waiting by now. And to instead bow to the Regent..."

She knows Zenos is willing to play along with whatever works for his own goals, but...does that fit with what the Regent wants? What he wants?