To me it sounds like he knows nothing about sexual assault. If you say no and someone proceeds they have just shown you that the social contract means nothing to them. As the person being assaulted you are coping with a terrifying realization that you are dealing with someone who has no respect for you and no qualms about harming you. You have no idea what someone so lacking in empathy might be capable of. It is completely rational to do whatever you think will de-escalate the situation and leave with your life.

Your psychiatrist doesn't know that. Which is a much deeper problem than a misspoken word. I would not got back.