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The original was posted on /r/AmItheAsshole by /u/Dear_Offer326 on 2023-09-20 19:12:15.
Title sounds weird? I'll explain. So my dad is engaged to a woman, Ruth. Ruth has an almost 5 year old daughter Laci. Their wedding is planned for January and ever since Ruth and Laci moved in with us (dad and me) and Laci and I have been forced to share a room because it's a two bedroom house, Laci has become obsessed with me. She thinks I'm the coolest person and she always wants to be around me. So Ruth came up with this idea of having sibling moments during the wedding where we embrace each other as true sisters for the first time. She mentioned it to Laci before either her or my dad mentioned it to me. So Laci was really excited and happy.
But I'm not comfortable with the idea. I don't want to hold her during a family unity ceremony is performed, I don't want to do a special sister dance where the spotlight is on us, and I don't want to make promises that I'm not sure I would keep. The promises were already printed out by Ruth and she showed me what I would need to say. It's basically I will always answer her calls, always call her my sister from that day forward, that I will be there for her and chase away the bullies and show her how to do things. It's not that I'm opposed to us being closer at all. But I won't be going out of my way to come home from college just to be there more with Laci. I might not even stay at my dad's when I do because I don't want to share with Laci. I already hate doing it now.
I expressed that I didn't want to do those things during the wedding and Ruth was furious. My dad was like it would be so sweet and would be super cute to look back on when watching the wedding videos. Ruth was saying how excited Laci now is and how I would crush her heart and soul and stomp on them if I refuse to do it. She even claimed Laci was saying how excited she was to have me as a sister forever and that she wants me to be her protector. Not sure I buy a 4 year old saying all that.
Ever since I said I didn't want to do those things I have been under a lot of pressure to give in and Ruth has been accusing me of rejecting Laci and refusing to have anything to do with her. That's not what this is but I don't love Laci right now and I don't know that I will be playing the big sister role. It might be more like cousins because honestly I will be moving out as soon as I'm 18 to get a little more space. But this whole thing is starting to get to me.
AITA?