We only get to meet up at funerals or weddings in my family but when we do it’s like we have never been apart. That’s my father’s side . My mother’s side I don’t mind if I never see them again. My grandmother passed away recently. She had money. Lots of money. We didn’t want any of it. Once the funeral expenses were covered my mother was happy. My mother is not rich but she would rather be poor than take money from her mother. This wasn’t the same for her 2 brothers and 2 sisters. On the week my nanny died there were 4 withdrawals every day of 3000 Euro each time . Someone was clearing her account. We knew it was my mother’s sister. My mother turned a blind eye. In my nanny’s will she divided her funds up by 4. Not much left after funeral and also one of the brothers who cleared 20k from her account for a business venture. My mother’s view is that the money train has stopped but I don’t care if I don’t see these people ever again. I know your example is your half sister which is a lot closer but there is two people in this . An article recently with Anthony Hopkins revealed that the actor doesn’t have a relationship with his daughter because he doesn’t like her . That’s an eye opener. Not many people would admit this ! You can’t choose your family