"My BiL, since retiring, does everything for my DS and dotes on her and they have a wonderful marriage until it comes to her half brother. He just won’t accept him and it’s causing lots grief for my DS. It upsets me to see my DS so upset. "
Not so much doting on, more controlling! It seems to me that your BIL resents your sisters relationship with her newly discovered brother and is set on destroying their relationship. How sad, does the BIL not realise that he cannot change your sisters past even thought she didn't know so much about it herself until recently.
Spoilt, self centred, small minded, jealous b****r who wants his wife all to himself! Been in a similar situation myself, relationships with controlling men do not end well.
4 Years On…..Health-wise, Has Anything Changed?
Searching for recipe in Supercook magazine