I think if I was in the person's position, I would have kept the dragons as well. She was sort of rude but you kind of gave a bad impression by switching things around.
If you did not see the dragons and inquire about them before you made the deal, that was improper business fashion, and I get the impression you two had already touched upon a deal. Last minute questions are not a good thing in a case like this.
I think it was pretty even...JMO and don't be too offended by it if you can help it.