Imagine his emotional song is him kind of freaking out because now that he's finally free, he doesn't really know what he wants anymore. He has it all. The power, the strength, the freedom, the reputation, etc. He came back to pick on Lucifer but he has no real goals anymore now that he's reached his main one- no longer having his soul owned.
So the idea that he may go dormant and still terrifies him. He can be as violent as he wants but he has nothing to really do now.
Maybe he goes looking for trouble just to avoid the tranquility of having security. Could maybe even be used as a sort of parallel to other characters if an issue of not knowing where to go next after finally having heaven on Charlie's side becomes a reoccurring theme.
Possibly also is him freaking out if he ends up just getting comfortable and enjoying even Lucifer's company. He cant have himself admitting he's genuinely happy and getting cozy being around the gang now can he?
Holy shit.
You’re on to something because Alastor’s greatest desire is to be entertained. He wants to continuously have fun, and revel in chaos.
He scoffs at predictability, hates the idea of being bored. And yet, the greatest goal of his afterlife has been reached.
So what will he do now?
Was the entertainment he gets from seeing sinners fail at redemption a bluff to hide that he was sent by Rosie? Or was it a half truth? And will he still find entertainment in it? Is it possible now that redemption has been proven a reality?
Will whatever plans he has for the hotel be entertaining enough?
Will it be what he wants or will it lead him to what he needs?
Alastor is now in a position where he has to make his own fun. And without Rosie holding his leash he has more freedom to be creative than ever before.
He doesn’t have to try and find loopholes. He doesn’t have to be on alert for when she might call for him. He doesn’t have to obey commands. He doesn’t have to restrict himself anymore.
Because he’s free.
But even with that freedom, what direction will he go now that he has an eternity stretched out before him? Now that he’s not constantly chasing a way out?
Alastor always seemed like a person who flourishes under pressure. Who relishes in a challenge. He thrives when working towards an impossible goal. Whether in life or death. And the biggest challenge of his afterlife, getting out his deal, is over.
Now he’s in the position to become complacent. To get comfortable and find contentment in a stagnant existence.
And I agree, that that would terrify him.
