https://www.mangago.me/read-manga/gochisousama/ this maybe ? The last chapter
It's really hard honestly, all I remember was of the story. The fully intending to reject the guy and her twin was beside her, turns out the confessor actually likes her twin brother (they're outside the school as per usual anime confessing is) He actually grows to like the guy and the rest of it follows what I said in the original ask. Right??? It's so annoying when you can't find it :((!! I'll ahead and try searching for it again for you
https://www.mangago.me/read-manga/joshi_bl/mf/c007/
Maybe that's what you are searching for
SOMEONE FOUND IT ALREADY!!! GIRLLL I'M SO HAPPY https://www.mangago.me/read-manga/joshi_bl/mf/c007/
It's a one shot I think, or maybe it was a one shot as a special chapter in a manga, but all I remember is that there's this guy who likes this person, who happens to be twins, they got called out to be confessed by the guy and they were shocked to know that guy is into the boy twin rather than the girl. A little mixed up there lmaooo. But somehow the boy twin and the confessor started going out. (They're all in highschool btw)
I don't quite remember how it goes, but I remember the last panel was of the twin girl (crying a little I think?) Her back turn to the viewer, sunset and all, she gives a laid back waved
PLEASE I MISS IT I honestly don't know why I want to read it again, but it's been aching at me for years, I don't know maybe because of the simplicity of it or was it fun?? It's been bothering me so much-