i (22f) have an older sister anna (26f), and we’ve always had a somewhat complicated relationship. we’re not close, but we’ve always been able to get along for the most part. that was until a few months ago when i discovered that anna had been taking my clothes, makeup, and personal things without asking. at first, i thought maybe i was just being forgetful, but then i realized that some of my more expensive items were going missing.

the last straw was when i found that anna had taken my designer jacket that i’d been saving up for, wore it to one of her friends’ parties, and returned it with a stain on it. when i confronted her, she acted like it was no big deal and said i was “being dramatic.” i was furious because i had made it clear before that i didn’t want her borrowing my things, and she completely disregarded that. she didn’t even apologize, and it felt like she didn’t care.

my birthday was coming up, and i was planning a small get-together with a few friends. i decided not to invite her, because i was still upset about everything that had happened, and honestly, i didn’t want her showing up and making my day about her. when my parents found out, they were really upset and said i was being petty. they also said i should just forgive her and let it go because we’re family. my mom keeps telling me that “family is important” and that i shouldn’t let something small get in the way of our relationship.

but i still feel hurt. i worked hard for the things i have, and it felt like anna didn’t respect that. now, the whole family is mad at me, and i feel like they’re all siding with her.

AITAH for not inviting my sister to my birthday party after she stole my things?