the fact that you think getting cheated on is a way to LEARN ANYTHING is disgusting, yuni the bitch could had broke up with her and be done with it, but nop, the solution for yuni was to put more effort in her afair that to break up so spare the the stupid idea that Nannase is at fault
Some lessons are harder and more "expensive" to learn. Their relationship was doomed to fail to begin with. The problem started with Nanase digging a hole for their relationship, and Asahina only plunged it deeper down the abyss, with Fuuko being the last person to bury everything. Let's say Yuni didn't "cheat", and broke up with her, and started going out with Fuuko. OK? What changed? Nothing. Their relationship got toasted, and they go separate ways, looking at each other like garbage. And well, they truly are garbage in their own way. If anything, if it's not obvious enough, young readers can take a lesson out of this: if you neglect your lover, don't be surprised when they disappear from your life.
@GuiltyNubbins Exactly so! I don't feel anything for Fuuko as a character, because she seems more like a convenient plot device that the author puts in as a catalyst to accelerate the dooming of their relationship. Even if she wasn't in the picture, nothing good would have come out of this so-called love, anyway. Yuki is just a minor supporting character until this point, so I don't care much for her, either.
There's no rule that says you can't have a love interest. Furthermore, they both are girls. Girls can always get away with being close to each other, unlike guys who would instantly be looked at as odd if they are too close. Nanase can do that with Yuki, but can't do that with Yuni? As horrible as a horny bitch that Yuni is, she is right about one thing: Nanase cares much more about her club and her own appearance than Yuni or their relationship. This is a fact that can't be denied. What was Nanase doing on the day of their anniversary? To Nanase, Yuni is just a convenient "lover", a thrill. She doesn't truly love Yuni.
"But but but lesbians are discriminated in the hell-hole of Japan..." Shove it. That excuse goes out the window when you have a character like Fuuko who is so unhinged at everything she does. And unlike certain countries, lesbians are less likely to deal with physical violence there. If Nanase is that popular, she could have used her status and influence to come clean with their relationship. If they discriminate against her, they lose a good player. Aren't young people supposed to be the one to change the world? Nanase is also a coward in this aspect, too. It also goes back to what I said: which one is more important to her? Her club and social standing? Or her own happiness and her love interest? It's clear what she chose.
Nanase = selfish bitch, negligent partner, also a coward
Yuni = horny selfish bitch who can't communicate, also a coward
Fuuko = merely plot device, convenient catalyst, also an entitled bitch in-universe
Yuki = supporting role, her existence made things worse and progress faster, but she's not a bad person
Realistically, they are in high school. And high school love relationships don't last for long. A relationship like Nanase and Yuni will crash and burn even before the school year ends. What's more important is the signs that they have showed: Nanase is like a corporate workaholic who neglects his wife. But it's worse because at least the guy has to follow his boss's orders, while Nanase simply cares for herself. Yuni is that wife who will cheat on her husband if he goes on a long business trip. Both of these girls should never get into another relationship ever again, because they definitely will hurt someone else mentally.
Sheesh, such a long paragraph for some trash characters... And this is still ongoing since 2021. Hope the author won't drag things out to 100 chapters or so. Story can just end with them all going separate ways and never acknowledge each other's existence again. I think most readers are rooting for that, anyway.
tl;dr: all of them a awful love partners, had everything that happened coming and deserved it, should never get into a relationship again.