I guess that "I'll casually loom over you and pretend to be suave" move works with the ladies who fawn over him, but not with this one, thank God. He's learning manners whether he likes it or not.
@faulty450 IIRC he was able to go to some social events as an adult and was popular with women. Though, yeah, I agree that he probably doesn't think of himself as a playboy, and he does say he was "acting pompous" when he tried to do the couch-kabedon thing to Astina. I'm just a little irked that he gave into his ego at first until Astina put him in his place, even if that was a normal reaction coming from him.