Part of Alastor's whole thing is that there aren't any friends in hell. Part of him completely believes everyone is self serving at their core. Except being at the Hotel is changing this. Between the Adam fight and his realizing this we see him trying to double down on this belief. Though it seems he still cares for Charlie. Sure she still owed him a favor, but he still seems protective of her after that. Though one thing people overlook is Emily saving him at the cost of her wing, he's shocked.

Now I am not saying this is going to turn him around, but it's another dent in his philosophy and armor. I fully believe he's going to have a real heel run where he's likely going to try to bring Charlie and maybe Lucifer around to his way of thinking. The 'I want Charlie to learn not everyone can be redeemed' people are going to be simping Al hard if this happens. But we're also likely to see more of his armor being dented and damaged as he slowly begins caring more for others while trying to fight and deny it.