So I tried to kill myself and my sister (who got in touch a week and a half later but didn't ask how I was or if I needed help) has lied to the rest of the family and said I rebuffed her. She has since turned her back when I needed somewhere to stay in a crisis (she knew i was suicidal again) and my father has put this down to her 'being busy with a family'. This has all been normalised within the immediate family and she is blameless. However there are extended family members and old childhood friends I could contact on Facebook who have some idea of the favouritism and parental abuse I suffered. Would you contact them - if only to let her know I've put the record straight before it's too late?