Throwaway and fake name because my family uses reddit. I (26F) have been with my boyfriend, Mark (28M), for 4 years. We're super private people. Like, we barely even post couple pics on Instagram. He's the best, super shy but the most thoughtful guy ever. He proposed last weekend. It was perfect. We were on a hike, just the two of us, at our favorite spot at sunset. No big crowd, no cameras, just us. It was so us. I of course said yes!! We called our parents and closest friends right after to tell them the news. Everyone was so happy. My sister, Jess (29F), was especially excited and asked for all the details. I told her how simple and private it was and that I loved that there was no pressure, just us in the moment. On yesterday. I'm scrolling through Facebook and I see my sister has posted a video. The caption is "MY SISTER IS GETTING MARRIED!!! CONGRATS TO THE FUTURE MR & MRS! 🥳💍 My stomach just dropped. It was a video of the proposal. Mark had apparently set up his phone on a rock to secretly record it, which I never even noticed. He told me later he did it so we could have the memory just for us, to watch on anniversaries and stuff. He sent the video to our immediate family group chat the night we got engaged, saying "For family only, please don't share." Well, Jess took that video, set it to some cheesy romantic music, and posted it for all 800 of her friends, his family, our family, and all our coworkers to see. The comments were already flooded with "OMG!" and "So beautiful!" from people I wouldn't even have told for weeks. I was furious. I immediately called her and yelled at her. I asked her what the hell she was thinking and told her she stole a super private moment from us. She started crying and said she was just "so happy" and "wanted to share the joy" and that I was being a *bridezilla* already by not letting people celebrate us. Now my mom is calling me, saying I was too harsh on Jess and that she meant well, and that I should just be happy people are excited. But Mark is really upset too, he feels like his one condition (keeping it private) was completely ignored. Our private moment is now public property. I feel like maybe I'm the asshole because I did crush her excitement and she was just trying to be nice. But also it wasn't hers to share??