Why is mrs. Drover scared of her fiance?

Mrs. Drover is scared of her fiancé because he represents a painful and traumatic connection to her past, particularly during the turmoil of World War I. His presence evokes memories of fear and loss, as he was previously a source of emotional distress for her. This fear is compounded by the eerie atmosphere of the deserted house and her own feelings of isolation, leading her to feel vulnerable and anxious in his presence. Ultimately, her fear reflects deeper psychological scars and the haunting effects of her experiences.