I think its a 2 part onshot, but anyway there was a black hair seme and a blonde uke who was really cute and girly when he was younger, but then he grew really tall and had to wear glasses, and when he meets the seme a couple of years later he doesnt recognize him so the uke runs away. (sorry for this run on sentence of a description)

I don't remember the title either (I'll prolly find it sooner or later)...
But is it the one in which the seme goes overseas (America or something) and they only communicate through a cell-phone? Idk, I could be wrong. 🤣

Second story of Katsubou no Manazashi?
I was only just re-reading it a while ago. ;p

YES, IT WAS Katsubou no ManazashI, THANLS SOOOOO MUCH