EXACTLY!!! I feel like im solving her problems!!!!
Stuff always happens to her. Her car breaks down, she calls you. She doesn't know "what to do" in certain situations. You solve it. Family issues, you solve it. And the big one---money issues, she always comes up short, but finds money for what she wants to do, and not for what she needs---rent, food, meds, insurance.
So, you have a mental tab---which you know will never get paid back. Oh, but that booty and the sex is good.
No, man...the problem is, you become the problem solver.
As they said, say you have a 2 yr lease, and you are thinking of going back to school for your masters, phd, JD, and that you need your space and time. You enjoy the time you spend with her, and would like to continue, but you are on another path right now. A path that needs more attention and time.
A decent person should respect another's desire to improve themselves.