Is AUTHOR wrong in the post ? POST : So, my sister (24F) and I(25F) moved into an apartment together in December 2018. The agreement was she would pay the rent ($890) and I would pay everything else. This was because I had just started working at a stable job (12/hr) while she already had one (15/hr). 

However, in January 2019 she decided to quit her job to start a business and drives Uber to make income. Now, she wants me to start paying half the rent as well because she says she doesn't make enough money to do anything. 

The problem is she is confused on why I expect us to go half on all the household bills because apparently I make enough to afford it. I pointed out I have an excess of money because I don't have other personal bills (ie car note, insurance, furniture bill,etc). 

Monthly Household Bills:
Rent $890
Comcast $150 (phone,internet,tv)
Tmobile $154
Grocery $200
Gas $110
Electric $50
Misc $20

My personal bills include a marta bus pass, $5 student loan, $50/wk allowance while she has a car bill, car insurance, furniture bills, student loan payment.

