I'm probably delirating and there's no manga of sorts around here, but my memory's been jogged so hard i just have to know if it's really a thing
Don't have much info though, overall it's about this one kid who ain't even old enough to squeeze a toothpaste, she likes this older girl, a middle/high schoolgirl or something, and then time passes and the little brat is now the middle/high schooler and she still likes the older girl who now might or might not be the school nurse, probably not since Dear My Teacher pops in my head sometimes and that just complicates it all
Anyway i'd appreciate if you guys could shoot me any examples of the "little girl growing up and still being in love with their past crush" trope so maybe i could find it in the middle of it all