When this woman is angry with her SIL, she asks Reddit:
I [F25] am an indigenous lesbian. I got off of my rez after years of hard work and lucky breaks and manage to have a home that I'll someday own completely.
My brother [27M] and his wife [37F] moved into my home about a year and a half ago because he fell on hard times. I've been allowing him to stay and help with bills, but just enough that I can ease some financial strain while also for him to save money.
I loved his wife until last Halloween. She, a Caucasian woman, dressed up as an "Indian" to be cute, and even my brother was appalled by it; she literally put a red handprint over her mouth, which is a symbol of the heartwrenching MMIW movement, and wore a cheap Spirit buckskin outfit with feathers and a buckskin headband.