I don't think so. I think arisa had always been that perceptive. Also adding that she's also very ambitious and competent, that the system basically rig her just because she's a girl. Of course she'd sack Kouki though. And ngl, kouki with his upbringing isn't the right man for her.
She's basically one of those independent and intelligent people who's amazing and has a lot of skills but being held back because of the patriarchy. She's sharp and straight-forward(which can lead to ppl thinking that she's rude or too intense), not tactless. She doesn't really like Kouki bc as you can see he falls back quickly to his toxic masculinity whenever he fells insecure or pressured by his peers. I don't think a strong willed person like Arisa would like to be in a relationship with someone who might hold her back (This sounds like I'm flaming Kouki but I'm not, thats my baby boii)
I was wondering do you think arisa might be trans too or intersex because she knew exactly how to handle that and also she said she hates the kouki, so maybe.. Who knows