My brother SA’d me when I was young

I’ll try to keep this as short as possible.

When I was younger, a child, my half brother (share a father) moved in with us. I was never really close to him prior to that and only seen him on holidays and vacations. Anyways, things progressed fast and there was tons of red flags with his behaviour that I can acknowledge now but at the time, I couldn’t. The SA happened for a couple months until I started avoiding going to my dads (parents separated) and then I started avoiding all family events and shit blew up and that’s how it got out what was happening. I was essentially trying to defend why I wasn’t coming around anymore and I just blurted out the truth. I guess his behaviour with his full sister was the same when they were younger but she accepted it , he admitted it to my dad’s family. My dad’s family started harassing me daily and I went to the police to get a restraining order on my dads mom and my brother, they needed to have an explanation why and I didn’t know that because I was a minor that legally they’d have to do an investigation which lead to a long court process.

Years have passed, I’m a mom and living my best life. I still struggle with some trauma and certain triggers and nightmares. I have cut everyone off from my dads side other then my dad. My dad and I never really talked about it, he more so silently supported me. He cut ties with him during the outing of what he did to me… I would never blame my dad for having a relationship with his son though, I don’t expect him not to talk to him because of what happened to me I just don’t want to know and I don’t want my brother knowing my life and seeing my kids and I think that’s well in my rights.. well I found out my dad’s girlfriend (we’ve had a hit and miss relationship) has my brother on facebook and I was caught off guard one day seeing his name and photo on her facebook status… now that being said that’s her choice I do think it’s weird if my dad hasn’t talked to him in over 10 years why would she have him as a friend? And friendly enough to comment on her stuff. My big problem is she’s posted pictures and stuff with my kids, she knows what happened I think she should have thought more about that privacy you know? She’s well aware how I feel and my rules when it comes to the privacy of my life. It triggered me seeing him and I called my dad and said that it’s weird she has him on facebook and it’s unfair he gets to see my kids and stuff he just turned the other cheek and dismissed my feelings… it’s always been this way. He doesn’t deal with things. His family attacked me for years over this and he turned his head the other way and ignored all the turmoil I had to go through and now this. I want respect and acknowledgment on my choices with my kids. I don’t want their faces blasted on social media period and I don’t want the man who broke me to see my life and my little girls it just makes me feel sick. Anyways, I deleted her off my facebook and what not and she knows how I feel and doesn’t care either and ever since this happened my dad stopped coming around and talking to me.. he’s got his head so far up her ass it’s unreal but that’s his life and choice.

I’m to the point of going no contact and i don’t know if I’m in the right for feeling the way I do.