During the first year or so of Infinitude, Inarius definitely makes a joke or fifty about being in a real familiar situation, being all chained up in Hell. It's how he fell into bed with the last demon of Hatred after all.
It is unclear if he's flirting with the Lord of Hatred. Even he's not quite sure.
Mephisto does not appreciate the reminder, and makes sure he suffers accordingly (but also has an unfortunate understanding of what his daughter was going for here. That stupid angel really is tempting all chained to a wall and moaning in pain. What a bastard.)
The thing about pain and suffering though, is that if that's all the angel gets eventually he'll just numb over to it. So Mephisto ping-pongs him between pain and pleasure, boredom and overstimulation, ebbs and flows. Maybe he breaks all his joints one day. Maybe he heals the damage a week later, and lets him languish.
Inarius will pick a song to sing on repeat, just to get on his captor's nerves. That's about all he can manage. Usually he's screaming too much to sing. He successfully gets several earworms stuck in Mephisto's head, and he has definitely torn out that angel's vocal chords on more than one occasion. (He always ends up putting them back though. Can't hear the angel scream if he can't scream.)
May or may not also...let him sing on purpose sometimes. Dude's got a nice voice, it's something different from all the snarling and brimstone of Hell. A nice change of pace for everyone.
After getting freed, Inarius would catch himself thinking and saying things to a Mephisto who was definitely not there. Look, you spend a few thousand years being held captive by a demon, you enter a weird headspace regarding that demon. (He does not realize that Wolf!Mephisto is real sometimes. Mephs is fascinated and entertained by this. Inarius mostly talks shit about the humans to him, but sometimes he complains about the Heavens. And on one memorable occasion, tells him his son had a nicer [redacted] than he did. Unfortunate, if illuminating. And Lilith had the nicer Everything, but that's no surprise there.)










