Alastor and Lucifer were enemies, no doubt about it. They always argued and messed with each other.

Lucifer, was soon forced to hang around Alastor because Charlie wanted them to get along. He eventually, started to like Alastor. But he couldn't bring himself to admit that, Alastor was sorta oblivious, but kinda in the same situation...he was too stubborn to say anything about it though, he was supposed to hate him, they were enemies...nothing more...right?

One day, Lucifer was sorta venting to Alastor because he had a rough time at a meeting with the sins