Let me ask your opinion Pinksoil:
Do you think it is proper or helpful to have a therapist reciprocate the patient feelings of eroticism toward him?

As a professional, a personal relationship can never come to fruition with a patient, which is why I can't see anything other than the patient getting hurt. The American Psychological Association Ethical Principles of Psychologists and Code of Conduct might be a good reference

American Psychological Association Ethical Principles-Code of Conduct