["I'm in school right now and unable to pay for much since most of my money goes towards bills and that's it. My girlfriend is out of school and working, and so when we do go out, she has to pay a lot of the time. I feel bad for making her do that, but I don't have much of a choice"]
Aw, you shouldn't feel bad!  At some point you'll have more cash and do the treating.  There's a lot of give and take in relationships.
I'm in school right now and unable to pay for much since most of my money goes towards bills and that's it. My girlfriend is out of school and working, and so when we do go out, she has to pay a lot of the time. I feel bad for making her do that, but I don't have much of a choice.