Final answer:
Heathcliff's return causes tension and jealousy in Catherine and Edgar's relationship, leading to emotional turmoil and marital strain.
Step-by-step explanation:
The return of Heathcliff in Emily Brontë's Wuthering Heights has a profound effect on Catherine and Edgar's relationship. Heathcliff's presence creates tension and jealousy, disrupting the Linton's marital harmony. Catherine, torn between her affection for Heathcliff and her duty to Edgar, displays erratic behavior that strains her marriage. Edgar, perceiving Heathcliff as a rival for Catherine's affections, grows increasingly distressed and assertive, attempting to assert his control over the situation. The dynamic between these characters becomes a central conflict, with Heathcliff's return acting as a catalyst for emotional turmoil and confrontation within the relationship between Catherine and Edgar.
The return of Heathcliff has a significant effect on Catherine and Edgar's relationship in the novel 'Wuthering Heights'. Heathcliff's return disrupts their marriage and intensifies Catherine's conflicted feelings between him and Edgar. Catherine's love for Heathcliff is rekindled, causing her to become increasingly unhappy in her marriage to Edgar.