Which character is associated with the phrase “For Heaven’s sake” in the novel?

In "Fifth Business," the phrase “For Heaven’s sake” is closely associated with Leola. This exclamation is emblematic of her character and reflects her emotional state and social standing throughout the story. Leola often finds herself in situations where this expression aptly captures her inner turmoil and the pressures she faces from the expectations placed upon her by society. Her character embodies the themes of desire, guilt, and the complexities of human relationships, making her responses particularly poignant in key moments of the narrative.

While other characters in the novel may exhibit their own complexities and emotional depth, the phrase specifically resonates with Leola's journey and the circumstances that surround her existence, making her the character most closely tied to it.