So her ex was 2 years older. My guess is they broke up when her ex graduated, bet the ex pulled the traditional Class S yuri trope of "well can't be gay anymore time to find a man instead" bs...
That or the classic "We were just fooling around!! Who i really love is rando-kun who i was also dating when i was dating you!!"
I hate the whole all girl school just playing love games trope. It's like the manga author reassuring the readers; "Don't worry these girls aren't really gay, they just have limited options. When they graduate they will properly date men".
I mean, the entire point of it appearing in contemporary manga is usually about how harmful and outdated that mindset is and how it's hurt the main characters, and to contrast the love of the main characters, which is usually shown in some way to be different. Like, that's a relic of Class S works, it usually shows up specifically to rail against it.
Totally agree. This is another example of knee-jerk reaction to the mere existence or even suggestion of certain tropes in a story, irrespective of the use the mangaka is actually making of the trope.
But one thing to remember about this discussion (and I really do mean this with all respect and friendliness) is that johnb is an inveterate yuri-skeptic--a veritable Eeyore of dire predictions about the probable non-yuri future of any given series, no matter how totally gay the overall indicators may be. And, in fact, their pessimism is occasionally warranted by the outcome of a series or two.
I'm just hoping for an eventual bright, rainbow-bedecked yuri future where nothing can possibly justify johnb's gloomy anhedonia.