I (F21) just lost almost 40lbs during lockdown, meaning no one saw me in almost 3 months. A friend of my mom came to our house to drop something off and she complimented me on my weight loss and asked me what I did to lose the weight. My mom chimed in immediately saying “(my sisters name) also started losing weight! She barely ate anything today”.
A week pass and my aunt asked if she can come drink a coffee at our place, I haven't seen her in the 3 months either. She complimented me on my weight loss also, and my mom said “you'll eventually lose weight when you stay in bed the whole day. She and her sister are both on a diet.”
I got really mad at her at this point. My sister is the favorite child, first academically in her grade, got valedictorian, author of the school's news paper and a bunch of other stuff, while I was just the weird, black sheep artsy kid in the family. My sister is not actively losing weight, and my mother can't stand someone complimenting me without complimenting her favorite child.
I burst out asking her why she always have to turn complements about me around to my sister. And I also told my aunt I'm actually eating healthy and exercising, not like my mom is saying I'm sleeping all day not eating.
TL;DR: mom always turns other people's compliments about me into compliments about my sister