How does hindley's decree at the end of chapter 6 that Heathcliff's first word to Miss Cathy should ensure a dismissal strengthen the emotional situation?

Hindley's decree at the end of chapter 6 underscores the intense animosity and power dynamics between him, Heathcliff, and Catherine. By insisting that Heathcliff's first Word to Catherine should lead to his dismissal, Hindley not only seeks to assert his control over Heathcliff but also highlights the deep-rooted class and social tensions. This moment heightens the emotional stakes, as it foreshadows the impending conflict and separation between Heathcliff and Catherine, amplifying the tragic nature of their relationship. The decree serves as a catalyst for the unfolding drama, deepening the sense of impending loss and despair.