I'm not quite sure what to tell you to do with the assistant. But I will tell you this: what she did was wrong, evil, unethical. You don't need the whole office knowing all your personal business like that. You have grounds to be very angry. I commend you for taking care of yourself and being able to get back to a very busy job with high responsibility. Work stress is probably the main reason for my depression as well. I work 11 to 12 hrs a day and can't keep up with my workload. Wish you the best.