AITA for giving my bachelorette party money to my brother to pay of his debt?

I just threw my fiancé and his sisters under the bus so I guess that’s a yes. But here is what happened.<br><br>My fiancé (Fiancé 36, I’m 35) and I have been together for 8 years and lived together for almost 6. We got engaged last year. Because my vacation time at work is so limited we decided to get married in December rather than wait another 2 years. <br><br>We want a very small affair but his sister is very big in to weddings. She insists that I want all of the “traditional” things like a bachelorette party and professional photos and all of that. She knows that I don’t want it but she keeps pushing it. She went so far as to drag my fiance into it saying he needs to “step the fuck up and make me happy.” I’m not sure how he is supposed to do that.<br><br>She talked him into giving her my parent’s number so she could get them involved. That was the straw that broke the camels back. I yelled at both of them and told them they need to back the fuck off. I don’t want any of it. I’ve always thought that bachelorette parties were weird and gross. I’ve always wanted to skip the photos and just have an open bar. <br><br>She told me I’m being an asshole and that I need to get over myself and that I need to grow up.<br><br>So my brother called me the next day after that call happened. He asked me if I was really getting married since he hadn’t heard about it. I told him I was and asked if our mom had reached out. He said that my mom hadn’t reached out but my soon to be in-laws did. I told him my future sister in-law was going “off the rails” with the wedding stuff and that I was getting really sick of it. He said that if I really don’t want to get married then maybe I should call it off. I told him I really couldn’t. I told him my future in-laws would sue us for the money we spent so far. I told him I really did want to be married to my fiance, I just didn’t want her involved. He asked how much the wedding was costing and I told him it was well over 50k. He asked if they would get half if we split up and I told him that they would take half of what was left and that they would also take half of what we already spent. He asked me how much “half of what we already spent” was and I told him I thought maybe 40k. He told me he owed 35k and “it would be really nice if I could get him that money.” I told him that was my bachelorette money and he said that this would be way better than an party. <br><br>I texted my friends and told them the money was off the table. Most of them were understanding. A few weren’t. One was so mad that she called me an asshole and blocked me. <br><br>But my soon to be sister in-law was absolutely livid. I told her we were skipping the bachelorette party. She called me a bitch and said that she was going to tell “everyone” that I am backing out on my obligations to my friends and that I have no problem being an asshole to people who care about “me and my stunt of a marriage.” She also told me that I was the biggest asshole ever for taking money from my “friends.” <br><br>So AITA?