Alastor suspected it from the first second they met, but now he was sure about Angel Dust. He was uneasy and he really hated this feeling. So he had to do something about it, even tho he didn't really knew what that something could be. He liked things simple. And mess in his mind right now was anything but simple. Even excitation for upcoming entertaiment from Hazbin Hotel's future futile efforts of saving souls, couldn't put him at ease. So he made decision, he felt he'll regret.