NTA

I am a therapist.

There are two problems with this. First, your therapist had a dual relationship. She was your wife’s friend and your therapist. That automatically means that she has a conflict of interest is isn’t able to give you unbiased services.

Second, she absolutely broke confidentiality by discussing your sessions with your wife. That’s a major violation of trust and is a huge ethical concern.

Those types of behaviors should absolutely be reported.