"You are not acting like an asshole! That means you ARE an asshole!"
...would be weird in any other context. But we do know that people were weirded out by Josuke's haircut being like old delinquent ones, and being Japan they would avoid him for it.
Also, nice to see Kakyoin getting some closure after so long... or some time before his end...
...how does that even work? Stands are weird.