hellooo does some of u know a bl where they are love rivals but ended up together instead?...

https://www.mangago.me/read-manga/rival_ni_ki_wo_tsukero/

It took me 10 minutes BUT I FOUND IT!! I read this one, rivals to lovers and really liked it

https://www.mangago.me/read-manga/nande_omae_ga_ki_ni_nannen/

This one seems to have that theme https://www.mangago.me/read-manga/love_your_love_enemy/

https://www.mangago.me/read-manga/totally_captivated/
https://www.mangago.me/read-manga/parallel_lines/