Why not.
He was traded to hell because he stole the worldstone that was in heaven and provoked a bigger conflict with the primes, so heaven gave him to the primes to secure a truce or armistice.
Eventually he would be freed and returned, but i dont know if he escaped during the destruction of the worldstone or during the reaping, so he broke the terms. Not to mention that none of the primes were active to complain about the deal being broken.
Without his link to heaven inarius is completely alone on sanctuary, people worship him as a living god, so he has no equals. Could say tyrael, but i doubt tyrael will see eye to eye the way inarius portrays himself.
He put his lot on the council decision, the council gave him to the primes, he could have refused and gone rogue, so yes, he accepted the terms.
Only equals he had were in the council, none of the council even acknowledge him after the reaping, they probably still dont approve his idea of the church of light. He is/was completely ostracized.
So Inarius made unholy things with Lilith to make the first human, thats what I got from the story. And then? What happened after Rathma was the frist human?
Yes.
So he is our daddy.
But was it only him? I thought it was lilith and him? His role in D4 isnt really clear to me, he seems just mad that he is out of heaven but he doesnt mean us humans any harm, does he?
You’re lured by an evil temptress only to end up with demon spawn running around. She’s now on her own mission ignoring you. Of course you want to go back to the good ol’ days of freedom and blasting with the boys in the angeris council.
Inarius objectively abandoned high heaven before met Lilith.
Thats why this “you know what, i’m going back” make no sense, because he already gave up on heaven before being betrayed by them.
My post was mostly a joke. I don’t think Inarius has to make complete sense. I think it’s an allegory on midlife crisis and being upset with his past decisions. He’s acting emotional and irrational and that ultimately leads to his downfall.
Also editing to add re your point
Inarius leaves high heaven to escape the eternal conflict
I think he has come to realize there is no escaping the eternal conflict.
It wasn’t Heavens, but one of Nephalems (not Rathma though), who thought against Inarius’ tyranny.
At first it was nearly impossible, as Inarius ‘tied’ himself to Worldstone, and had true god-like powers. But they managed to break that bond with ritual and defeat Inarius. And later on gave him to Mephisto.
Why giving him to Mephisto is unknown. But my guess is that it was Mephisto who taught them a ritual, for an exchange of Inarius himself.
Because he doesnt have anyone, all the cabal that supported him died. Lilith in limbo at the time and he also realized that she was crazy from the start. And all those years in purgatory served him to understand how wrong he was.
And he doesnt want to go to the heavens but be part of the angelic host once again and fight in the eternal conflict with his peers.
