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During counseling/therapy, any counselor or a therapist will use this methodology to help his/her patients to bring them out of the problems they face. They will need to show love, empathy, care, affection, attention and patience to understand your problems and symptoms to be able to help you better way to come out of the problems that you face. What feelings you are undergoing at present for your counselor or therapist is natural because of the underlying disorder/problem that you are faced with. These feelings could also be present due to the fact that you might not have experienced such kind of attention and care in your past which could result in infatuation.
So, whatever feelings you are experiencing or undergoing is like a basic foundation to your own release of feelings and symptoms, and it would also mean that you are slowly getting out of your social anxiety (the fact that you are open to discuss your feelings about her with me or any doctor).
I would recommend you to try and control your feelings towards her, especially your thoughts about her. Learn to concentrate on her methodology to help you as her patient to help you come out of your basic problem of social anxiety disorder. Taking any steps to express your feelings towards her might disrupt your own healing/counseling process because it might cause her to get cautioned in being how she is towards you which will in turn affect her understanding of your symptoms/problems and result in further complications.
Hope this helps. Take care.