Another possibility that I have only just considered is that he might be referring to another unverified account going by the name "Rekieta Law" on YouTube, whose messages were not recorded in the thread but were frequently sending messages in Aaron's chat. As I only watch clips of Aaron, I wouldn't know whether such an account actually exists...
This all happened well before Melton revealed that Rekieta had invaded Aaron's Google account. It would be curious to know if the only way Rekieta developed such a hypothesis was through intercepting private messages between Sean and Aaron. However, this hypothetical scenario seems unlikely, as Sean doesn't seem to be the type to engage in such gay ops.