How does the character of Mary Dempsey serve as a catalyst in the story?

Mary Dempsey plays a crucial role in Dunstan Ramsay's journey throughout "Fifth Business" by triggering deep-seated feelings of guilt and responsibility within him. Her presence and the circumstances surrounding her character compel Dunstan to confront his past and examine the consequences of his actions. The pivotal moment when she becomes part of the narrative, particularly through the event involving her son and her struggles, forces Dunstan to reflect on his own moral dilemmas and his intricate ties to the people around him.

While some might view her as a mere distraction or a love interest, Mary Dempsey’s character embodies the theme of responsibility. As Dunstan grapples with his feelings of guilt regarding the incident with her son, her significance transcends romantic implications, as she becomes a catalyst for his internal conflict and transformation. In essence, she is instrumental in shaping Dunstan's identity and choices, solidifying the importance of moral accountability in his life.