Responses
It's war. That means it doesn't matter if the enemy is a good or a bad person - an enemy is an enemy nevertheless.
But the cat never actively hunted her and her beloved and never intended to do so and pose a threat - it was just the cats nature and that's now undone by Adele becoming its master. It isn't dangerous for their side anymore.
She killed that "innocent" Asura because of the potential risks of danger but forgave the cat???? What???? Girl just what is your morality...