I agree with the other posters. Communicate with your girlfriend--let her know that you want to see her more often. Is it that you want
to see her more often or do you feel like you should
see her more often (based on what you see everyone around you doing)?
My boyfriend and I are always talking on the phone, in person, whatever, though we do have our own lives. For me, I have found that I really like it when he tells me that he wants to see me--it makes me feel good inside and wanted. Maybe your girlfriend is hoping that you'll tell her that you want to see her...and it sounds like you might. So tell her this, and see what happens
All the Best