Are there any rape crisis centers in your area? It is very good that you are seeing a therapist, but you may find more qualified help at a center that is primarily oriented to helping rape victims.
Rape is a crime. I am surprised that both your therapist and your doctor treated it as a relationship episode. You may obtain different advice from a rape crisis center. And, it may help you regarding your earlier history.
Good luck and welcome to SR, by the way!