Does that mean like that Ryouta has multiple personalities?

It was acchan dream about ryouta do it to him.. But irl, ryouta was not like that and didnt do anything... That's why he's kinda shock when acchan suddenly kiss him.

It could be that. Or he was dreaming about the more perverted personality of Ryouta, hence why he says do it like always. And why there's a promise Ryouta doesn't remember. And explains why he was so agressive in the first scene.