Responses
Mangal Or manhwa?
a big maybe but one of the chapters in http://www.mangago.zone/read-manga/kataomoi_to_parade/
has something along those lines happen
theres also one where he's dating a barber and was going to cut his own hair out of heartbreak but his friends cut his hair before he decides or something and the barber gets pissed. I can find that if its what you're looking for
Okay so all I can remember is that the uke cutted his own hair and the seme thought they are over because he hurt him. I forgot the title and so I'm asking for your help huhu I appreciate your reply