So.. my younger brother died suddenly 6 years ago. He was 33 (18 months younger) no children of his own. My parents don't have any interest in me or my 4 children anymore ( youngest was born post death) my parents hated my brother when he was alive, they now hate me and my children, yet they make a massive effort with the children of my brothers partner. Am I unreasonable to feel jealous and let down?