Here's the thing, and this is just my .02. While there is a fair amount of truth in a number of the posts above, the point is that a person has to have confidence and feel good about their realtor or any other professional with which he or she may work. Clearly that is not the case here, as she not only doesn't think he is doing "jack" for her, but she specifically states that she thinks he is lying to her. Not really the basis for a good working relationship. Also, for the record, she didn't really ask "Hey all you Snowest geniuses, can you tell me why my condo isn't selling even though you probably have never seen it and don't really know my market or asking price?". Her question appeared to be related to firing her agent and/or breaking the listing agreement.
I'm not a realtor, nor do I play one on tv, and I didn't sleep in a Holiday Inn last night either, but I do know a little bit about contracts, and in my experience, there is almost always a way out, especially with performance contracts.
Wired, is there nothing in the contract regarding each parties specific duties/ responsibilities? Seems like there would have to be at least some basic definition of what is to be expected in terms of performance by each side? You may be able to argue that you are not getting what you contracted for. At the very least, if you have any reasonable basis for your belief that he or she is lying to you, that in itself may give you grounds to cancel the contract.