Nope, you didn't, [ Josuke agrees breezily, knowing it's about time he should get out of his business. He rises to his feet, brushing off his clothes and running a hand through the side of his hair. ] But that was a lot of anger for someone who doesn't know you. I'm not stupid.

[ He can only assume they truly do have bad blood. Yes, Akechi was "faultless" at the ceremony. But Akechi's story about not knowing him, knowing him as some troubled kid at a weird school is falling apart at the seams. Pointing at him leisurely: ]

Just to make it clear, I healed you because I didn't like what he said about your mom. I don't know what the hell's going on between you two, but I do know that was a douche thing to say.

[ Josuke says that much bluntly, looking at him dead in the eye. This is easy to be truthful about — what Ryuji said was fucked up, and it would hurt him a lot, too, were he in Akechi's shoes. But if he knows that about Akechi, they are quite obviously not strangers. ]

So putting this out of sight, no ramifications, think of it like a favor to me. In exchange for the lack of black eye you have right now.

[ He raises his hand in a laid-back, delinquent-esque wave, getting out of his space as requested. Unless Akechi has anything else to say to him, he'll saunter off. ]