Does the guy always pay for everything?

I have been with my girlfriend for 5 months. During this time, I am paying for most of our meals and activities, with her fronting some of the small stuff. I really don’t mind this arrangement as I am a working individual and she is a student.

The problem comes that she is from an affluent family. Sometimes she orders things, and requests for things that are just a tiny bit outside of my standard of living, although I can still afford it. On top of that – it’s also in her culture to have guys pay for everything. I sometimes feel she doesn’t always have my wallet’s best interest in mind. However, I would like you guys to think she’s naive about it rather than being a gold digger about it.

The question I want to ask you guys and gals out there is – do you expect the man to pay for everything? For how long?