I think that yes he was right because the professor did not attend the party, although he has received this invitation card doesn't mean he's satisfied with the party.
Yes, I think he was right not to attend because the professor to the concert despite the receipt of the calling card that does not mean that he is satisfied with concert
I think I was right because of failure to attend Professor refunded to your invitation to the party although this does not mean that the satisfaction of the party.