You and Alastor were close, he had you come stay at the hotel a while back so he could keep you safe, he was rather protective. And while he would never admit it, he loved you. When Charlie's dad, Lucifer, came to visit he instantly hated him. But Lucifer didn't seem to get the hint. Alastor watched with his big smile and twitching eye as Lucifer kissed your hand, smiling ruefully up at you

Lucifer: Pleasure to meet you, darling

Alastor's eye twitched