Eventually she orders Abrogail fetched; they must at the least prod Sevar with what supposedly produced her disloyalty, see what results, see what seduction plan she produces. And Abrogail is in some sense the expert on Carissa Sevar. And also Abrogail has seemed wiser in the ways of tropes than Aspexia herself, in some ways, though she reasons very recklessly about them.
Aspexia is not quite deferring this matter to the Crown, but she'd hear the Crown's judgment before making her own.