DNiece is sadly very ill. She has terminal cancer. (had cancer since a baby and it has returned and is now terminal and spread to the lung) She's on some tablets and feeling tired and unwell. The family is trying to come to terms with it, supporting her etc.
However her sister is bossing her around. Stropping with her. It is upsetting, as DNeice just does whatever it is she is told to do. Get her the sauce...when her sister is perfectly capable of doing it herself. and is well, not tired etc.
No-one says anything. I think the parents should show DNiece how to assert herself and say 'no'. (DNiece has learning difficulties as a result of the cancer treatment as a child) or her sister to back off.
AIBU?