My SZ older sister had stolen over $13k from my mom’s savings yesterday

I caught her in the act because today and yesterday she kept closing the bedroom door and the hallway door. When she did it again today, I thought it was suspicious so I went out to the living room and caught her looking under my mom’s bed. She was then looking at a van’s box next to her (where she stashed her savings).

I asked her “What are you doing?”

She said in a panicked tone, “Nothing!”

And she quickly put everything back, dressed up, and left home. I told my mom that “I think she might’ve stolen money from you” and my mom wouldn’t believe it but would come home on her break and count her savings again. My mom confronted her when she got back from work and asked her why she stole 13k from her. She kept quiet and my mom had to keep repeating it to her. My sister kept saying that she kept asking my mom for $50 a week a few months back and my mom couldn’t do that because she doesn’t make a lot of money where she can give to us. My sister also said that she’ll only give her $2k back because she owes her $3k and the many months she begged my mom for $50. In the end, my mom has let her keep the packages she bought using her money, and the incoming packages she bought using my mom’s savings. She bought A LOT of perfumes (that she would never buy if she were sane), more shoes, plushies that she had bought from the Pokémon Center, nail polishes, AND SHE ALSO BOUGHT A NEW IPHONE YESTERDAY SINCE SHE LOST HER OLD ONE A FEW MONTHS AGO AT THE PARK. My mom is heartbroken because she had NEVER stolen from her. She also told my mom to call their former boss to get her job back but wants OUR MOM to ask her for her because according to her “their boss knows my mom better”. She complains about my mom being selfish for stealing all the money for herself by taking all of “her” hours away by not wanting her to go back to the old job (my sister used to work alongside my mom at the same job). My mom had to tell her that she can’t go back because she’s not 100% better and their boss had told her earlier this year that they’ll welcome her back when she’s better but didn’t believe my mom until she called their boss right there.

Lastly, her obsession right now is how much she HATES her former boss and her family and has this unhealthy crush on their son but according to what I found on her search logs yesterday on her secondary phone it seems like she’s turning on the son too. The search log reads, “Rahul (the boss’ son) wants Ann (her) to be dirty to her out meaning he doesn’t see Ann as a viable marriagable option cause she is stupid thinking Ann would allow him to come back as that to her so we are going to say not one word okay okay.”

I had to fix the spelling mistakes she made in that search but yeah that’s our problem so far.