If you didn't sign consent, then she can't talk to your H. Even if you did sign consent, you can revoke it at any time.

My fiance is my emergency contact and that's it. The ONLY time she can initiate contact with him is in the case of an emergency: if she's calling 911 on me or hospitalizing me, then she can tell him. She can't even say why I'm being hospitalized. Beyond that, she can't say anything to him. If my fiance calls her, she'll listen to him, but she can't say anything about me.

But I gave my T and Pdoc full consent to talk to each other. They can talk whenever they want about whatever they want. Though, it is my right to limit or restrict even them at any point in time.

Your T has no right to talk to your H unless she has your consent.