Rosie: Hmm, I guess since those asshole angels took my most beloved follower, I’ll whip up my own followers! If only to show that asshole God that anything he can do I can do better.

[Creates Susan, the most annoying old lady that everyone around her wishes she’ll die again]

Rosie: Crushed it

.

Alastor: I just don’t understand “Remember who you truly are?” I know who I am! I’m Alastor! What could you possibly mean.

Rosie: Maybe go to that hotel that the Princess of Hell is making, the one whose mother’s been missing for seven years, which coincidentally lines up with the time the exterminations started and the time I took you here to adjust for no reasons in particular. Maybe you’ll find some answers there.

.

Rosie: So who do we need to fight?

Charlie: It’s an army of exorcist led by the first man Adam-

Rosie: SAY LESS CANNIBALS GATHER IN THE SQUARE

(You know she cheered the loudest when Alastor punched Adam in the face again)

.

Alastor: Rosie dear may I ask for some advice?

Rosie: Of course darling! I don’t judge tell me what’s troubling you.

Alastor: It’s about Lucifer-

Rosie: You can do better

Lol yes this is basically Rosie/Roo in this AU! You have her down pat!

This Hazbin Hotel collage of Alastor and Rosie, I'm hopping that we get to see more moments and scenes between these two in the second season.