Older sister by 3 years is going through the disciplinary process at work due to her taking excessive sick leave over a prolonged period.
She had a meeting last week to explain herself to her HR dept and asked me to come along for 'moral support'. She had her union rep with her as well.
Sister and I have never been close. In fact she did unspeakable things to me when we were children. She delighted in my mother's physical abuse of me (she was the 'golden' one) and the fact that I had to wear her cast off clothes and she was favourite. We have recently moved near her though and I agreed to go to try to build bridges with her as she is family after all 
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Anyway during the meeting, the union rep brought up the fact that my sister has 'suffered greatly' with depression since the death of MY child 2 years ago and that is why she had taken so much time off work.
So basically without warning me or mentioning it to me at all, she has tried to use the death of my child to save her ass [anger]. I was in shock that this would be brought up and knew damn well it was a lie. She has never talked to me about DD's death, never offered me any support or comfort, never knew her at all.
I am fucking furious she would spring that on me and am sickened by her that I will never speak to her or see her again.
AIBU?