you should wash your hands of her now. this lassie's obviously just taking the complete piss of people who care about her. stealing, asking for money etc...
she clearly knows when and how to take your kindness as a weakness, no one needs cunts like that in their life.
cut her off. you might feel a bit shit about it for a while, i know i probably would. but she's not doing you any favours in life as far as i can tell...