I agree with the previous posters, it is a maturity problem. She is unable to see the long term picture. You are attempting to better yourself and have a better future for the both of you. She is in the "me" stage of life. She wants to do what she wants, when she wants and you can't accommodate her whims. School is your number one priority. If she expects to be your number one priority, then there will continue to be a problem. If she is not saying "it sucks that we can't spend more time together, but I understand that you need to focus on school. If you need my help, let me know otherwise I will find something else to do while you study." then you need to take a break or go your separate ways. She needs to be your number one cheerleader and encouraging you to do your best and not put any relationship stress on you. On the other hand, you need to set aside "couple" time, even if it means an hour for dinner together or a couple hours to rent a movie (then back to the books) once or twice a week. Also involve her in your studying for tests (quizzing you or making of flashcards) and help writing or proofreading of papers. My girlfriend and I have dinner together on Wednesdays and then she goes home to let me do homework. Sundays it is out to eat or dinner at my house and rent a movie, then back to the books. She understands that it is temporary sacrifice for the good of our future. If I don't graduate, it destroys our game plan for our future, so she is doing everything possible to assist me with schoolwork and reduce my stress.