Bachelorette party gone wrong.

Hey guys,


I need to know if I’m in the wrong or if my sister is... I’m eloping at the end of April. I was supposed to get married in June and due to stress and money we decided to elope and are so happy. All I have asked my sisters to do is go dress shopping with me twice. I’m not having an engagement party, wedding shower or anything. I’m not having a bridal party either. I’ve also planned everything on my own.
I got a little upset after the holidays because I felt like my sisters were pretty absent, no one was offering to help plan anything or asking any questions. I told them how I felt and they reassured me they cared. When I decided to elope my sister asked if I wanted a bachelorette party. I told her I felt weird having one and inviting people who aren’t invited into the wedding. She said not to worry about it and she started planning it. I told her I wanted to do something more laid back rather than a weekend getaway so we decided on a mineral hot spring/spa place nearby that costs $72 to get in. After she invited everyone I asked if I could see the invitation. She wouldn’t show it to me so I said fine I’ll ask my best friend and she was like fine and showed me a picture of the front of the invite and told me I needed to back off. Then I started finding out some people were unable to come do to finances. I was confused and asked how much it was and she said $150. I said that was very expensive for my friends and she told me if they cared about me they would come. Then I asked if I could contribute money to get the price down and she told me I’m ungrateful and she’s done so much work and I can just plan it on my own.
I feel like I didn’t really do anything to deserve that harsh of a reaction... I just wanted a low key bachelorette party where I could hang with my friends. It’s so expensive though that most of them can’t come. I’m not looking forward to going on this bachelorette party under these negative circumstances. I’m tempted to just opt out if it and plan a sleepover at my house... The only thing is my sister put $250 down on a deposit and also bought gift cards to the spa because they were having a $100 for $80 sale... I feel trapped. My sisters can be pretty harsh and the one planning is particularly good at manipulating things and being the victim. I just feel like this is my wedding and I should feel comfortable with my bachelorette party... Thoughts?? Is my sister right?