I don't want her eating the food I paid for.
Is there something wrong with the food?
No, I just feel disrespected  by her, she didn't even say thank you for it.
It's a meal that someone took time to prepare so you should eat it. It's wasteful to not eat food that is already made.
I don't care about the food. Spicy chicken is gross anyway.
It seems really petty to waste food over something trivial. You know next time you can just dine by yourself. Or tell her how you feel unappreciated.