Aria's Favorite

Hi guys was finding for a manga , yaoi and is about school.life , there was a guy (Seme) bestfriend with uke , and then they we both sweet , but then suddenly the uke had a girl friend , and the day the Seme goes to airport and the uke bring tht girl along , and they wish him (seme) luck for studying abroad , then the Seme wish the uke happiness if tht what he wish for , I think is ongoing #－.－) pls help find .... I wanna know the ending