Is OTHER wrong in the post ? POST : For clarity my youngest sister was adopted from my family because my uncle and his wife both cannot conceive children. My uncle has three children including my sister that he has adopted from our side and his in laws. Uncle owns his own computer retail and repair shop, so hes well off.

My younger sister has always been a soft spot for my mom. Initially she didnt really want to give up my younger sister but had made a promise to her father that if she does ever give birth to another child that she would let her older brother adopt them. Being a woman of culture and of her word, when she gave birth my grandma took my little sister away making her my legal cousin.

Every year like clockwork, since my sisters birth my parents have always sent birthday gifts, christmas gifts, etc. My uncle understood and is cool with it, my sister always elated because theyre gifts. It never bothered me because i once took a trip home and we got along well.

However, recently i feel like my sisters starting to become a brat about it. Her sister just recently gave birth and now that theres a new baby in the picture my uncle has tightened his purse strings so to say. Ive since learned that my younger sister, who used to ask for things through me, has now gone over my head to tell my older sister to ask my mom to send her things. I know its because i stopped relaying her message, but only because her requests came too often and were too expensive. 

My mom and i argued because i noticed her online shopping had become ridiculous and she informed me that its all stuff for my younger sister back home. WHAT? i got mad because my mom doesnt even work anymore, and the rents gone up, and we just bought a new car. WE ONLY MAKE ENOUGH (me, my older sister, and dad work) to pay bills, buy food, and buy things for the 4 children in the house. I reminded her that my little sister isnt living in poverty, my uncle is much much more well off than us. THEY HAVE FOUR CARS, MY LITTLE SISTER HAS HER OWN CAR!

My mom called me an asshole for making a fuss about it since shes still my sister and i should WANT to send her nice things since she didnt choose to leave us. I made my mom cry cause i told her im cutting her off, and i know making my mom cry makes me an asshole, but aita for not wanting to send my little sister care packages anymore?