http://www.mangago.me/read-manga/soshite_koi_ni_naru/
please tell me if you know any.
sorry misread your question.the one i mention before is rival arrived then seme realize his feeling.
http://www.mangago.me/read-manga/koitomo_triangle/ it might be this one but not sure
oh no its fine. i will read it. thank you (づ￣ ³￣)づ
i will read it! thank you :))
where the seme(can be uke too) is inlove with a straight friend but the friend doesnt like him the same way. but eventually realizes he likes him when a love rival arrived. ┗( T﹏T )┛