I get that the author was going for the usual "girls going through a lesbian phase at an all-girls school and growing out of it" type story but this is probably one of the worse versions of that trope that I've read.
Like I should know better than to expect anything else given how often yuri authors seem to be allergic to bisexuals but like... just because she has a boyfriend years after doesn't mean her feelings weren't real???? And it's not like the girl didn't try, she basically confessed and got rejected twice, and our stupid lead still expected her to follow her to university?? How self-centered and arrogant can you be??
What a stupid story with an insufferable lead