Truthfully speaking, I don't really care about the price of the dinner (1) because like you said, I had fun and she did too, (2) It's only money and I know her character. I'm no where near hurting and I would have spent it some other place anyway. I used to eat there a lot so I was familiar with the place and prices before I suggested it.
Treat her with love and don't cheat. Just from your recent posts, you sound like all my close player friends right before they threw the player life in the bushes and decided it's time to find a home.