I love my BF but just now i really dont like her...?

We've been best friends and roommates for 6 years. I am by nature a giving kind of gal...but my friend just seems to be taking and taking just now. She pays NO bills, i get them all. She works part time and contributes nothing - she never cleans and tidys after her and her boyf (who seems to have moved in, also pays no money or keeps the place nice)when i talk to her about me (rare, she never has time)i get a mumbled and disinterested - mm. Mmm. She never asks how i am doing and seems more than happy to let me keep doing EVERYTHING! How can my best friend who knows i have trouble saying no to people and always willing to help - take such blatant advantage of me!!I know that i've put myself in this situation and so i cant blame her - and yet I hate her for letting me and the situation get like this! Its so FRUSTRATING!!!!!!