<human>: Allow me to begin by saying that this isn't a plea for help because I just found out that the girl I've been with for five years is a pathological liar. I've known since the first few months. The problem is that everywhere I look and everyone I ask tells me that seeing a therapist is the only way to help her work this out. While I agree that professional psychiatric help is necessary in our situation, seeing someone once a week has not helped at all in the five years that I've known her, and we simply cannot afford any more time with a therapist while we are struggling to pay for college. The therapists we've seen ( eight thus far ) can offer me no new ideas, as compulsive lying is very tricky to deal with.

Does ANYONE have ideas of what I can do with her one-on-one to work on this? I know there must be something more I can do to help.

Follow-up info:

1. I know her tells, but in some situations she can lie without showing any sign of it not being the truth. The most problematic instance being when she says that she wants to stop lying. I want to believe it.

2. I have tried everything I can find or think of, from "show no reaction to lies", to "call her out on every lie" and "set up a system of reprimands and rewards" etc etc etc

3. We have figured out the reasons why she became a compulsive liar, and all of the therapists ( and I, if my opinion means anything at all ) believe that she has come to terms with the underlying issues, so what remains is that she can't break the addiction.

Can you condense the text into a few key points?
<bot>: the point of this is **not** to ask how to solve the problem outright, I'm looking for ideas on how I can assist her in the process of overcoming an addiction.