Everyone was so sure Fell would be family. Anthony had no plans to throw the guy over, break his heart into a million pieces or trod it deep into the mud, but... He didn't really know how Aziraphale felt about being family. Maybe they had different goals? What if the angel remembered more about his past than he currently knew? As he grew less human and more angel wouldn't he draw away? It would be the natural response. Something in the back of Anthony's mind recalled old taboos about angels and demons being enemies...

"You were the one to bring it up, I was only trying to give your hunting around a chance of success."