Need help figuring out my girlfriend?

I have this girl friend who says she loves me and has done some pretty spectacular things for me like paying half of the cost of a new bedroom set matts and all plus she gives me things and does favors for me all the time she has even offered me money when I was short of cash just before pay day. But she is very into her work and her family and does not dedicate very much time for outside activities or rondeyviews with me. Rarely does she take me to family affairs and has kept me secret from some of her family members. She allowcates a Saturday over night with me and a fun filled Sunday morning and afternoon. Other than that it is a short telephone conversations usely about nothing or of me asking to see her more, to no avail. She says she is in love with me and is very intimate and open with me in private but I just get no time and no commitment to the future. I am falling in love with this woman but I am afraid that she is just infatuated with me and in the long run she will eather loose interest or fall out of this love she has and will be gone with out a trace leaving me feeling really bad. I am way to old to be playing games and trying to see whitch of us can become more jellous. I want her, but there is no commitment to go steady, or for an engagement or marriage, she wants NO COMMITMENT AT ALL. So who thinks I'm waisting my time beating a dead horse or should I have hope for the future and be the true knight that I am. I am not sure if I should just end it before my heart gets broke? I really do care for her. Pleaqse help!! Thanks