Would you be pissed?!

So last year when our daughter was a couple months old we made the decision we do NOT want to be posting our baby on social media and no one else could either. Anyways my husbands sister doesn’t like me for literally unknown reason I’ve never done anything to that girl what so ever but every time we go over she finds something to complain about or talk shit all the time! Well she started saying stuff yesterday so we left then later on that day she posted a picture of her, my daughter, my husband & herself since she just graduated but she put as he caption “my niece was in the picture so I just had to post it.” Like trying to piss me off when she knows we don’t allow it!!!!!! Am I wrong for being mad???? Like she totally disrespected our decision & I’m super nice & im tired of being nice already when all his family does is talk shit and start drama! I mean she could’ve at LEAST asked! But no she didn’t she just did it herself! We made this decision for certain reasons and she completely disobeyed our rules for OUR kid!

UPDATE: things have gotten worse to her talking shit on Facebook and posting more pics of MY DAUGHTER! Saying I’m not a “proud mother” because I don’t post pics of her? I didn’t know that made me not a proud mother 🤔😂 so I have come to the decision we will no longer be going over there and my husband has agreed also and they will not be allowed to see our daughter & our son due this month 🤷🏻‍♀️🤗