Yeah, a few things are just Selebus being ridiculous and this is one of them.
And the latest on that progression of nonsense is that: For fuck's sake, Niki has been living with Akira for two months now. What's the rationalization for not accepting they're in a relationship? Even discounting all the other girls that know about it and their so called NDAs, would Noriko not let that slip? And even the NDAs are kind of pointless when half the class was there for christmas. Is it really just the new update on "everyone knows Niki dated Akira but Chika ignores it for some reason"?
Ayane and Yumi are part of RAS, so I guess it's whatever, but Touka and Noriko are just "yeah, Akira's married now I guess I won't even comment on it". Imani too, it's like, Niki is literally right there in the house. Why is there no conversation about this other than between Maya and Ami?
The time skip is SO weird, because what did Akira even do during these two months? Every girl that visited would have to know Niki's living there, he would have to give her a notice that he's not sleeping home when he doesn't. This would not be something that is kept hidden during two months of actual game, so then why create the disconnect of Akira having lived those two months but not us?
Unrelated but, also, now that I think about it, why would Otoha need Akira to deliver a gift to Niki? Her vocal lessons are over? Is Niki officially done with her? Why wouldn't she just wait to meet her or something? Is Otoha just being a coward and actually she wrote a letter of "yeah, sorry about everything, will fuck your husband instead since I can somehow imagine him as my little brother, and I couldn't bring myself to say this to your face"?
Edit: It will be a fucking riot if Otoha fucks Akira before Rin btw. Can you imagine?