There is this comedy manga where there are these two male best friends and one on them has...

There is this comedy manga where there are these two male best friends and one on them has a crush on a girl and that girl draws bl manga and because of misunderstandings she think the two are dating and stuff like that I remember one of the scenes where they were in a train and the girl drops her eraser and when she goes to pick it up her pencil drops and one of the boy gets scared because he didn’t know she was there and backs off a bit but slips on her pencil and he tries to hold his friend to prevent him from falling down and he just rips all the buttoms off of his friends shot cuse he couldn’t get a grip.Imma stop now cuse this got a little too long