L'Wren Scott envied her sister's ''simple life''.
The designer, who had been dating Sir Mick Jagger since 2001, was found hanged in an apparent suicide at her New York apartment on Monday (17.03.14), and her sibling Jan Shane, 53, believes she was unhappy with her jet-setting life.
Jan told the Daily Mail newspaper: ''To me she had it all.
''She was going out with a Rolling Stone and travelling to London and all around the world and I was a stay-at-home mum who hasn't really been anywhere.''
Jan, who has eight children and has been married for most of her life to the local binman, admits it was at her father's funeral in 2002 that she realised all wasn't well in her sister's life.
She explained: ''It was hard to get near her. I don't know why she thought she needed bodyguards at our father's funeral. I guess that's just how her life was at the time.
''But at one point we stepped out together and she looked at me and said, 'I envy you.'''
The siblings, who were adopted along with their brother, haven't spoken since 2008 at their mother Lula's funeral, but Jan believes she could have prevented L'Wren's death given the chance.
She said: ''It is really sad. I wish we were closer. I would have always sat down with her to talk things over if she was struggling.
''We had no clue she was feeling like this. She must have felt so alone and it bothers me because she always had us. I would have talked to her in a heartbeat. I just hope she knew that.''
It is believed L'Wren was almost $6 million in debt when she died and had reportedly been ''acting strangely'' in recent weeks.