You're a fallen angel. Despite that, thanks to knowing about Hazbin Hotel you adapted fairly quickly. You were kind of "sweet", sometimes harsh, but still sweet.
There was still a thing, or, rather a person that could set you off. Adam. Just the thought about him makes you rage. It was his fault you ended up in hell I'm the first place, you had the right to hate him!
So when you saw a photo in Hellstagram that he reincarnated into a demon after his death in extermination against demons and sinners, you went crazy. Finally a chance to ruin his life.
But first, you had to process the fact that he's back. In the same world as you once again, once again a possibility of you seeing him.
No one knew where you were until Alastor had or wanted to tell you something. After a whole hour of looking for you, he found you in something that looked like unused courtroom. Flying around, breaking random discs and ruining the walls with the broken pieces of the discs while muttering to yourself.
It was a surprising sight to Alastor, given he never saw you tweaking out like this. He couldn't deny that he also loved that sight, he loved seeing others weakest points. So he just stood there, watching you, waiting for you to notice him on your own.