So my sister had a lot of problems with my family (My parents and I) because of her now ex-boyfriend, like stealing from my parents and some heavy arguments, long story short he just disappeared and got into drugs, so now my sister, my two nephews and her cat came back to our house where she's only doing most of the cleaning, the thing is she doesn't care for her cat and barely pays for her food because "she does the housework", so i started an argument with her where i ended up saying she's staying for free and yet she can't take care of her cat, so she starting yelling at me that "this is my family too" and stuff like that, which i replied "you should have thought about that when you stole from us and blocked all contact with us when you were with your ex". I feel a little bad for yelling at her, but i still feel that she stopped being a close family member when she did all that stuff with her ex. AITA?

Sorry if there is any grammar issue, english is my second language.