"Sociopath and psychopathic liars do not change. They can't help it. " is my understanding. I ran into such a person. She adopted two of my foster kittens and had to "search and rescue" after she disposed of the two wonderful kittens. We have both of them now. After 3 years, one still has "PTSD"

When I was dealing with this psychopathic liar, I talked to my LAPD detective about such people. I asked him when can you tell when they are telling the truth and when they are not. Detective laughed and said to the effect, "When you figure that out, tell me the secret because I haven't figure it out" He said they believe in their own lies so much so that reality and their lies blur into their own reality. It's one and the same to them. If LAPD detective who is ready to retire can't get the truth from such a person, I don't think an average person have any chance.

I am sorry for your friend "Kathy".

And definitely do not lend any money to them or engage in them with any financial activity. Do not give them any thing with your signature. Nor make any loans of personal items.