Relationships?

i have had a gf for 3 yrs and i treat her good and i forget alot of things and she gets so mad at me for doin it, and when we fight and argue she brings up the crap that i have done to her that merely small stuff and she been telling me to get out for the past 2and a half, but when she's calmed down and and ok she cuddles with me and kisses me and calls me those names that u call each other whn u r together, she makes fun of me and the problems i have and she thinks that her and her daughter and treat me like total crap and get by with it but i cant do nothing back to them and i dont think thats right, and she says that she needs all my money to pay the bills and she says that i can have thos amount of money cuse shes being nice and stuff like that, she also siad that we need time apart so she can have ur time so i went and found a place so she can have time and i told her and she looked at me really surprized and didnt say nothing, so if anyone can help me on this it would be great..