I am curious as to how patient confidentiality is handled in cases like this.
Other than that I would take anything said to you by this councillor face-to-face as you see fit.
Anything sent to you, by her, on appropriate letterheaded paper as you see fit.
Anything "channelled" to you with only your husband's word for it as potentially made up by him, or twisted to his ends by him. Ask him to ask her to send the advice in writing. This gives the game away that you don't trust his word any more but it is a perfectly civil request and also makes it clear to "Irma" that you find it unacceptable that she uses him as a go-between to save a few quid on admin/postage costs.
Lastly, I don't think I've ever heard of therapy by proxy before. Also, if there is a second therapist, treating you as a pair, what's to stop conflicting diagnosis/therapies being handed out? Does the left hand know what the right hand is doing? (Also why is the NHS forking out for two therapists, where one would do?)