Yo there is this webtoon that has the same vibe as positively yours, but i forgot its title. It’s like the same where the girls first crush and her best friend went together, but sometime the guy admits that he wants her… but then the girl has moved on and there is this other guy. I think it has a univ setting but i forgot :((
Not really sure since there are a lot of stories like that, but this is the 1st one that came to my mind :
https://www.mangago.me/read-manga/today_living_with_you/

Can u recommend me some webtoons similar to positively yours?