I understand why would would be hurt by that. My therapist and psychiatrist also work in the same office. I was just stopping medication when I started therpy with her and complained about withdrawal symptoms. She asked if I wanted her to discuss it with the psychiatrist and I said no thanks and that was that. I would expect for her to ask unless it was safety issue. Maybe your therapist thought stopping the med was a safety thing? That being said they have access to each others notes from sessions (and so do I, and anyone in this healthcare network ) so I assume they read each others notes if there is a need.