Searching A Manga Title

I'm searching a manga please help me...
I read ch 1 long way ago... about an idols stalk it classmate... the classmate so annoyed with this idol because he always brought women and so noisy that why he move around but the idol always follow him and one day he got enough and go to his apartment and scold him but reporters came and the idol said he is his bestfriend then i forgot the name of it's manga..(￣∇￣") if anyone know please tell me...