NC, I just need advice as I'm so mixed up 
My parents are divorced (20+ years ago). It wasn't pleasant and I spent my childhood caught in the middle with what I've later worked out were lies on both sides.
I reconnected with my dad in my 20s and we were more friends than dad daughter iykwim. But my mum was abusive to me and I found it really hard living with her. He always said I could come and stay with him whenever I needed to get away.
One day, he pulled that offer, saying he didn't want to get involved. It turned out that my parents had spoken and she (somehow) had got him to back off.
TW: I attempted suicide as I felt so trapped. I was in ICU. When I spoke to dad afterwards he said he didn't come to see me because he didn't see the need.
Now he's unwell and wants me to visit. I agreed but cancelled as its brought up a lot of feelings. We spoke and, according to him, he spoke to my siblings (im NC with) at the time of the suicide attempt who all said "don't worry shes being dramatic" and that's why he didn't come.
This could be a lie, but they're also selfish and lack emotional maturity, so maybe its true. I'm not dramatic nor have I ever done anything like this or since so on the one hand it seems a leap that all siblings would say this, but also they don't deal with feelings well. Maybe its true, maybe its a version of the truth my dad is spinning. I have no idea.
But I'm so hurt. I just want to cut them all off right now.
I don't even know what I'm asking. I suppose at this moment I don't want a relationship with any of them. Would that be unfair?