There seems to be an assumption in your description that this is a well-adjusted guy and he was just having a bitchy day. I think that is wrong. He is a narcissist and from your later post also poorly educated. He is not having a bad day. He is everyone else's bad day, all the time. Being a problem for other people is how he gets his energy, unfortunately for everyone else.
I guess I have picked up on the fact that webcam sites attract the same psychological defects that you see in stripper bars and in the early days of porn. Lots of misogynists, lots of men with rapist mindset, lots of men with fragile egos, lots of men who constantly demand attention, and lots of men who have sex addictions and just lie their way through life. It is like a treasure chest of psych cases.
I am pretty sure that being a successful webcam model would be excellent on the job training for a future career as a therapist. There is a whole lot of ego management going on behind the scenes.