Seew22 Many times we can make poor partner decisions when we don't have are own stuff together. From the little bit that you have shared about your girlfriend I have to wonder if you're hoping to "rescue" her.
I know that it must be tough but you have too right now keep your boundary and insist that this is important too you and not continue with the relationship if you are not being treated in the way you think is equitable.
I do have to wonder what in the hell did you expect her to "work on" in a day?
Add me to the chorus of those that say don't get married but also let me suggest that you need to take a big look at yourself to see what your part in the current situation is and how you got into this situation.
