[PLEASE HELP]

Alright, so I know I don't need to pay for a girl if I don't want to, but honestly i'm afraid.

It's like, let's say we're going to mall and I wanna eat at McDonald's. I feel it's not appropriate if i don't pay for her, but i also like I don't want to.

I'm not cheap, I just don't like the whole idea of paying for her.

In a couple days i'm going on a field trip, my friend made it so there are like fees to get a seat on the bus!

If i invite the girl and she knows no one i feel like i'm obliged to pay for everything.

Food, cinema, carting, etc. which is way too much. I need help. It's just that my belief system is very based on the "Gentlemen pay for the girl" and if i don't she'll be disappointed and tell all her friends about how cheap i am and shit.

How do i not pay while still seeming cool and all?