Pen,
That's terrible. When you go to the effort of bring someone flying, then they should should some appreciation for your efforts, even if it turns out not to be something that they enjoy.
When you actually cover the full costs of the outing, given the very expensive nature of flying, then if they don't really enjoy the experience, good manners dictates that they should fake the excitement!

The appreciation of course should not require any faking!
If it's any consolation, I really enjoyed our day flying together! It was great fun, and I learnt a lot too
dp