There's more about Aoi-chan and her story in "Ami-chan's diary"
(https://dynasty-scans.com/chapters/the_girls_arcadia_fuzzy_arcadia#26)
So that was a fucking lie.
(Aoi first appeared in https://dynasty-scans.com/chapters/remembrance_of_arcadia)
I think Aoi is Yuu's mother, because Yuu (and particularly her sister) look very similar to Aoi.
That felt like an ending but the story line with Ran hasn't been concluded yet... So I guess it's not done yet?
I think the panel showing her drawing of senpai is an indication that Ran has figured out her feelings. What happens next is, I guess, up to us.
Overall, this manga was pretty alright! It was too slow and drawn-out for my tastes, and there were perhaps too many secondary characters (though "Kokome-rage" is the best joke in the manga by far). But Yatosaki Haru's art is always fantastic and I appreciate the point others have made that the manga is intentionally portraying the insecurity, vulnerability, and fear that teenagers falling in love for the first time experience. I guess I would've preferred a little more substance and payoff after all that buildup, though. Still, I'll probably end up rereading it if only for the art lol.
Thanks a lot to the translators!