My sister (24F) and I (28F) have always been close, but things have been tense between us since I got engaged. We've had arguments over everything from the color of the bridesmaid dresses to the type of flowers we're using.
But the biggest disagreement we've had so far is about her boyfriend (37M). They've only been dating for a few months, and I don't feel comfortable having him at my wedding. It's a small affair, and we only invited people who we are close with and who have been a part of our lives for a long time. We didn't want to invite any strangers or people we barely know.
When I told my sister she couldn't bring her boyfriend, she was absolutely livid. She accused me of being selfish and not caring about her happiness. She even threatened to not come to the wedding at all if he couldn't come.
I calmly explained my concerns, but I told her I wouldn't compromise on this. It's my wedding day, and I want to be surrounded by people who I love and who have been there for me throughout my life. I feel like if I give in and let her bring her boyfriend, it will set a bad precedent for our relationship going forward.
But now I'm worried that I've ruined our relationship anyway. My sister hasn't spoken to me in days, and I'm afraid she might not even show up to the wedding. AITA for standing my ground and potentially sacrificing my relationship with my sister on my wedding day?