Thank you for making this. I'm not entirely sure I understand the ending or even if the player is meant to have a concrete understanding of what comes next - hell, I'm not even sure if some of the characters being angels is meant to be taken literally or is meant to be taken as something that the unknown character at the start who may or may not have edited any of this might have changed in order to get at the emotional truth of something that can't quite hit right when expressed in plain words - but I really want to thank you for talking about care and obligation in a nuanced and humane way.
People can definitely burn themselves out trying to help others, especially when everyone involved is falling apart on the outskirts of a society that doesn't really care about them, but the strain of thought where you should cut people off when their problems are too difficult to deal with and they'll probably be okay anyway because something something professional help... it's ignorant, and it's cruel, and the people who say these things are often very quick to change their tune when they're the ones who want something. There's no easy solution to the cycle of caretaking and burnout among people who have very little to give but almost definitely won't be saved by anyone except each other, and I came away from this story thinking that maybe the more sympathetic characters could've made a few choices differently, but the reasons things ended this way had a lot more to do with who and what the rest of society values than with anything these characters did.
I don't know if that's what you wanted people to take away from this, but as someone who's been all three of the angel characters at different times to different people, it rang very true.