Based on the information provided within the question it can be said that the therapist would most likely conclude that in the dream, the images of swimming was the manifest content. This term refers to the actual literal content that is found within a dream such as the sights, sounds, and storyline of that dream. Such as the images of swimming.
You should treat her as a patient and a normal person, as you should treat any patient. Do not let personal connections get in the way of a professional mental disorder situation. Treat her with care and as a patient. At work play your role as coworker, and in the group play the role as caregiver.