she knows she's significantly more experienced, and is pretty much the queen bee of the doms at this club
she KNOWS she's pushing him against limits that aren't hard limits but things that he's not really comfortable with
she's not ONCE seen to his aftercare (once she helps him clean up midscene, but that's not aftercare).
and she's basically now just used him and dropped him.
OF COURSE HE'S PISSED OF AT YOU.