I think Maya is so reluctant and self hating because she knows THE Akira isnt supposed to be here in her world, which is why she says she has the "worst luck in the world". Maybe that theory of choosing Maya or Himawari at the end is right? She withholds secrets because she can imagine what the endgame is, a choice between her being wiped from existence and THE Akira going away.
So Maya drags is out, and tries to repress it all. This directly leads to her rooftop ending.
I'm still cooking on parts of this idea since I'm at the start of a new playthrough where I get to see some of the hints again, but I think our Akira and our Maya are the actual people who made their wishes, and aren't just copies of it while the originals were left behind (at least one wasn't). Or at the very least the Prime mayas has some reason to remember from the beginning and Akira pre-wish instead of having fake histories like Nu Maya did.
The narration of the intro reads like Akira was long dormant and being moved into the light by Himawari (bootstrapping herself after Moonflare's theory) into a world that was wished into existence with wish copies of Akira that just weren't him. Everyone else becomes slightly different which is fine for everyone else but not for Maya who remembers the original, and she pledges to search forever for her true love which doesn't happen on its own. I'm assuming the unluckiest person in the world is due to her finding out about being able to make a wish, and accidentally creating a wish where she made it impossible to get the thing she wished for (without outside intervention)
So what do you think Akira's wish actually was? We know Maya is the result of it, but what was the actual wish?
"I wish someone could make the pain stop"
"I wish Ami had a friend her age"
Did he actually wish for a living fucktoy like he thinks, or was his wish more wholesome, and his trauma corrupted it after the fact?
low tier wish "I want a doll to stop me doing the things I might want to do to Ami"
top tier wish "I wish for someone who can make me feel whole again" after he was freshly traumatized by Sekai and freshly lost her.
I doubt there's a wish ajudication council who ensures wishes are fufilled to gramattical correctness and instead are granted based on the wisher's experience, otherwise Himawari would have popped into existence right then and there, or at least the knowledge of how to reach a future with her.
Instead he gets someone to feed into the experience that Sekai created, and she's the one making the advances despite being as young as Akira was. Not someone to fix him, but keep him in the happy space he found. That's why both of them break down every now and then and the other nurses them back to health.
