I don't know
@Popejohn3 , I just wonder if she got herself into something bigger than herself, linked to criminality, drugs, etc, and maybe, not being particularly street wise, or too trusting, things "spiralled out of control" (quoting JK's dream apparition), so she had to be dispensed of.
Also, like
@Andyboy, I wonder how she could live beyond her means. Even if PL bought her the house, going out several nights a week, paying for her own drinks (as reported), and having all those holidays abroad must have been expensive. So either she had amassed huge credit card bills, or she was in debt with other people, or she did 'favours' to friends-of-friends maybe carrying or shifting stuff. Again, speculations, please do not think I have any proof of this. I'm less inclined to think that wealthy men gave her money in exchange for sex. I know, I'm generalising here, but Yorkshire men are not known for splashing money around.