Younger sister is splitting her time staying with her aunt and her sister while on vacation. Aunt has decided to make her the de facto bratsitter while she is on vacation and takes off left and right and leaves her with the brats for 4-8 hours each day that she stays with her. Her sister has had enough and goes by to take her for dinner instead, aunt blows up:
I'm wondering why the sister hasn't invited her fifteen-year-old sister to stay with her after AuntsBratsGate incident.
https://www.reddit.com/r/AmItheAsshole/comments/wmp07z/aita_for_picking_up_my_sister_when_she_didnt_want/