I f(35) and my sister(32) have had a recent argument about my mom. For context, i have been saving up since January this year because i have been wanting to get my own home (i rent and live alone) next year before my birthday on february as a gift for myself. 2 weeks ago my sister messaged me asking to borrow cash for some emergency at home and that she will return it in two weeks time. I told her i dont have spare cash with me and i live paycheck to paycheck to support myself. She knows im saving up for a house and told me she will pay it back as soon as possible so me being a people pleaser, i said okay.
After a week i found out that its my Mom who needed the money not my sister and she outright lied to me to help my mom. Me and my mom are not on good terms, she disowned me long before this issue, because i was tired paying for her debts. It feels like never ending so i decided to stop paying. I told my sister i need my money back, and she told me our mom is going through a lot of debts, that i should have some compassion, and that i should consider the money they borrowed, "help" for my mom and never expect a payment. She said i am being a very bad daughter and sister for even trying to get my money back. So, Am i the asshole?