It just so happens that she is choosing to believe that it doesn't really exist, or it doesn't have anything to do with her. She is free to believe that. However, if she wants to change something, she is going to have to take responsibility for it first. What we do with processing is basically that we bring something out of the sub-conscious realm, we get the person to examine it and realize that she is cause over it, we transform it into what she would like it to be, and we put it back. The client does not necessarily see it like that when she walks in.
Most clients walk in asking to get rid of something.
They don't know yet that they are asking to lose a part of themselves. Don't get into an argument about it, but never lose track of your own basic data. Never buy into the story about the client being the unfortunate victim of something she needs to get rid of. The person creates her whole world. You can transform things, you can integrate them, you can make them appear different.