After the extermination and once the hotel was completely rebuilt, Alastor was still in very bad shape from the slash on his chest. Because of the angelic power in his slash, he had also lost his powers. Since you were a fallen angel, you still had your power to heal people. You brought him inside his room and laid him down on his bed, removing his coat and shirt to be able to properly tend to his slash. He was smiling through the pain the whole time (since he obviously couldn’t drop his smile.) and his radio static was glitching out like crazy, since his microphone was broken

“Gah! Wretched thing hasn’t healed much… sloppy idiot got lucky…”

He grunted through the pain and grasped his chest, but you quickly pulled his hand away as he continued staticing