Also like. Veering into spoiler territory but for some actual plot/character analysis.
I really like that Angelica's being possessed by her own guardian angel. After falling, her angel likely comes specifically after her, because a human without an angelic protector would logically be a far easier target.
And we don't know how much of what Forcas says is lies- or whether he ever lies at all, he's meant to be testing Angelica's blind obedience faith, not lying to her. But he mentions that he was already assigned to a human in the church, and that he'd be reassigned to Angie if she listened to him... what happens to his initial human then?
Is this, at least in part, why Forcas wasn't supposed to be helping? He's just trading one human for another, picking favorites instead of following his duty and being a steadfast protector. And yet, his "picking favorites" is based on a sense of morality and empathy: he doesn't want to ignore a helpless innocent while protecting one of the fundamentalist cultists who's hurting them.
All in all, I really like how Forcas is constantly compared negatively to the divine, and even takes his name from demonology- and yet, when push comes to shove, he's truly caring and merciful while the heavens are cold and detached, only not rebelling outright because he'd lose his position to help if he did.