In the consternation of her mind at this step which she was taking,--a step which she had taught herself to regard as essentially her duty before it was taken, but which seemed to herself to be false and treacherous the moment she had taken it,--she had become aware that she had been wrong to travel with her cousin. 
In her trouble at this step which she was taking - a step which she had taught herself to regard as her duty, but which seemed to herself to be false and treacherous the moment she had taken it - she had become aware that she had been wrong to travel with her cousin.
