sorry for my bad typing im used to lower-case typing

There was this great Manga i read online (i think i found it under shounen-ai) and it started with this boy (lets call him A) and this girl (b) and maybe they were friends? i can't really remember but they both saw a person (c) and were in love. The Boy thought the person was a girl and the girl thought the person was a boy. turns out C was actually a boy just sorta feminine looking. A was sorta hear broken but then he was like whatever and still liked C. so A and B started having this contest on whos gonna date C first but A and C got along very well and i guess ill tag this as spoiler
[A and C do end up together but B gets like together with some other Boy that liked her who was her ex from middle school or something]

it was a very genuine and great story which i haven't seen in most shounen-ai and i'd really like to read it again, please help me....

That sounds exactly like Crush on You.

. i owe u my LIFE how can i repay your kindness

😁 Glad I could help! It really was a lovely manhwa.