Stop focussing on the arguments and focus on solutions.
Sounds like she knows what she wants. Sounds like you need to work out the same. Then you two need to communicate to each other and decide if you can give each other what you each need. If yes, carry on. If not, break up and move on. That's what adults do.
Her attitude is bothersome, yes. But I can guess she finds you pretty frustrating also. But is this a symptom of a potentially bigger problem. That you two are really on different pages of what you want from life? Be honest with each other. If you can't do that, then you may as well break up anyway.
Second thoughts can generally be amended with judicious action; injudicious actions can seldom be recovered with second thoughts.
--Cyteen by C.J.Cherryh