I feel like my sister ruined our relationship for no reason. Should I reach out or leave it alone?

I feel like my sister ruined our relationship for no reason. Anyone else deal with something similar to this? Idk if I should reach out or not. My sister has always been competitive when it comes to pregnancy in our family and especially when it comes to having girls because there’s only 1 girl in the family. I’ll call this sister “sister 1” and my other sister “sister 2”. Long story short I found out I was pregnant a few weeks after sister 1 found out she was pregnant. Sister 2 told me on numerous different occasions how sister 1 would say things about me “trying to compete with her” or “copying her by getting pregnant” which my pregnancy was NOT planned, hers was. She was obviously upset or something about me being pregnant to be talking about me that way more than once. She even told family about my pregnancy before I got to announce it when she knew I didn’t wanna tell anyone for a bit which was my first issue but I just brushed it off. She said she was “team green” and was head set on not finding out the gender until her baby was born. She did say she really wanted a girl though and would be upset if it was a boy. Well I told her I wanted a boy but found out from an early blood test that I’m having a girl and she was again upset about that and acted very weird/distant with me after I found out. I got the feeling she was kinda acting as if I was “rubbing it in her face” in a way because I was smiling and excited when I told her, even though I wanted a boy I’m still happy I am having a girl so I’m not gonna act disappointed to save her feelings or something. She told me not to believe the blood test. She hardly spoke to me after that. Then one day I see she posted something snarky on social media about “competing and comparing” which obviously had to have been about me because she doesn’t know sister 2 tells me everything she says about me which is always that I’m “trying to compete with her”. I said nothing about the post and simply removed her from my social media which was maybe petty for me to do at the time but this is not the first time I’ve had issues like this from her during one of my pregnancies. I just don’t wanna see shady posts that are subliminally directed towards me or my pregnancy so I removed her. She then text my number trying to argue with me about removing her but I didn’t feed into it, she blocked my number then started posting all kinds of mean/untrue things about me. She blocked me on everything else that I hadn’t already removed her on. But here’s where I feel like this was all for no reason. I got it confirmed at my doctor that I am in fact having a girl, then maybe 2 weeks later she “randomly” decides she’s not team green anymore and she’s having a last minute gender reveal because she knows the gender. Come to find out she told sister 2 after my blood test that she wasn’t gonna wait to find out the gender of her baby if I was actually having a girl, but sister 1 told me she was still team green (I guess that changed when I had it actually confirmed though). She found out she is also having a GIRL as well. Now she’s saying she’s apparently sad because she doesn’t know if she actually even wanted a girl or not. I’m kinda even more upset/aggravated than I already was about all of this because we’re both having girls and they could have been so close. She got what I thought she wanted and what she acted like she wanted so badly so I just don’t know why she had to ruin our relationship and make things weird by being soo competitive towards me. Part of me wants to reach out to her but another part of me wants to just keep my distance because again she has done this or acted similar to this in some way every single time I’ve been pregnant. She apologizes and says she “won’t do it again” and that she’ll “just be happy for me next time” then always does it AGAIN. Id rather see a change in her actions/behavior than for her to keep SAYING she’s sorry when clearly she’s not or she wouldn’t keep doing it. What would you do? Should I reach out to her or just leave it alone? Or maybe wait it out and see if she’ll reach out to me for once? I feel like I shouldn’t have to reach out to her but idk. It just sucks because I thought it would be cool to be pregnant at the same time as sisters and now we’re both having girls that will only be weeks apart in age. I wish she didn’t act the way she did.