I agree with what others have suggested. It is about the kind of responses she was getting from new, potential clients. For instance, she may have been getting emails from potential clients who are sexual predators or have severe sexual addiction, which she may not be willing/capable of treating. That would have no bearing on the types of "average" sexual issues her existing clients need to discuss, or those who have been the victims of sexual assault. Or, she may have been getting messages from "creepy" men looking for sex therapy for the "wrong" reasons. I would not take this as any reflection on current clients.