Do you want your husband in the room with you? Does your therapist wish to have your husband in the room with you? Sounds to me like you feel like progress is not being made at this time because he gets in your way???

I would suggest that your husband sit in the car, in the waiting room or go do errands for an hour. Would that be o.k. with you?

I agree that your therapist acting surprised is protecting your confidentiality. That is a good supportive action from your therapist.

Have the three of you not discussed him being in the room? Also if you wish him to have any input sinse you took a turn for the worst he could come in at the beginning or the end but only if you and /or the therapist wish him to.

Time to bring it up to your husband or however you choose to address it.