There's this restaurant my girlfriend really wants to go to for for a date, but I'm not gonna take her there.
She's your girlfriend! Why wouldn't you want to be take her to a place she wants to go?
I'm not going to waste my time on some stupid dinner.
I think it is wrong for you to act like that with her. It is rude not to respect her preferences. You should both take turns in deciding what to do on date night.
She's dumb and doesn't know how to act like an adult. I'm going to choose what to do and if she has a problem with it she can get lost.
That's a very selfish way to act in a relationship. You need to be willing to listen to your partner and take their preferences into consideration. If you're not willing to do this, then you need to end the relationship before you hurt her any further.