When non-qualified person tries to counsel mentally ill person, there is always a risk like this. (Mentally ill will become dependent on them or develops emotional attachment and untrained counselor does not know what to do). I think your friend has learned this lesson hard way and that is why he is not interested in talking to her now. I do not think that there can be further progress between them as your friend was never interested in her. Follow the advise of your psychiatrist, he will take care of her.