http://www.mangago.me/read-manga/tonari_ni_iru_no_ni_tooi/ ?
Not sure as there're quite many Seme steal Uke's GF,
ive read that before...but ive forgotten its art..
This is all I can take of. http://www.mangago.me/read-manga/window_beyond_window/
Thanks! I like that one too but it isn't what I was looking for. But someone already found it, it's this: http://www.mangago.me/read-manga/bukiyo_na_bokura_no_sukima/
http://www.mangago.me/read-manga/bukiyo_na_bokura_no_sukima/
I'm trying to look for the yaoi manga where there's this guy whose best friend always steals away his girlfriends but he didn't really get angry or anything, he was okay with it. One day, a pretty girl confessed to him and they kinda started dating. The girl knew that the guy was in love with his best friend. That's kinda all I remeber. Please and thank you!
EDIT: I think it was posted on manga sites on 2017 or 2016