"My romantic partner isn't a good reason to choose a school so I'll go to school somewhere else if it's a better school"
Unless every confectionary school in Tokyo is hot garbage, choosing a slightly better school elsewhere just because it's slightly better when you have a REALLY good reason to want to study in Tokyo would be nothing short of moronic.
It's not like you're trying to get on Kitchen Nightmares with Gordon Ramsey, any decent confectionary school is totally fine and throwing your relationship away just for a slightly better school that won't really make any meaningful difference in the end would be PEAK useless lesbian, fookin' hell. I would actually quit this story if it goes in that direction, because that's exactly the cheap forced-in drama I hate in storytelling.
I stayed at my college to remain close to somebody I was in a relationship, and we broke up two years in, and my school wasn't BAD and my education wasn't terrible, but I settled, and now I get to regret that forever. So sorry, but you're completely wrong.
You should go where you want to go, not wrap your life around being geographically close to a romantic partner. If you're a seriously good fit, you'll make long distance work.
Well, yes. Most youthful romances don’t last whatever the circumstances. I wouldn’t expect this series to track with real-life experience, though—most romance manga don’t.
Specifically, the “where to go after graduation” issue is a stock trope of high school romances, yuri or otherwise. Off the top of my head, I can recall ones where the MCs move together and all is well. Others where they go their separate ways, then time skip, then all is well. In some long-runners, they may move together and then, “things get complicated,” and maybe they don’t end up together.
In the latter case, though, my impression is that only happens in series with big casts and well-established potential love triangles prior to the graduation. What even would be the point of a fluffy, mostly SOL series crashing head-on into a wall of verisimilitude?