Mad Men: Why did Roger leave Mona?

The available evidence suggests that there were multiple factors contributing to Roger's decision to leave Mona. The deterioration of their relationship, including issues of infidelity, lack of emotional connection, and communication breakdowns, played a significant role. Roger's desire for personal growth and fulfillment beyond the confines of his marriage, as well as his disillusionment with his own life and career, contributed to his choice. External influences, such as Don's indifference towards him and societal expectations, also likely influenced his decision.Analysis:Roger's decision to leave Mona appears to be a culmination of various issues within their relationship. The lack of effective communication and emotional distance between them suggests a breakdown in their connection over time. It is possible that Roger's constant infidelity created a sense of alienation and disconnection from Mona. The superficiality and materialism that characterized their marriage may have left Roger feeling unfulfilled.Additionally, Roger's desire for personal growth and fulfillment beyond the confines of his marriage may have played a significant role. He began questioning his purpose in life and sought a life beyond the constraints of his past choices and relationships. The desire for autonomy and freedom, to explore new opportunities and experiences, might have driven Roger to leave.The influence of external factors cannot be overlooked. Don's indifference towards Roger's opinions and ideas in the workplace may have contributed to his decision. Feeling undervalued and unappreciated, Roger might have sought a fresh start where he could find recognition and validation. Societal expectations and cultural norms regarding marriage and success could have further influenced Roger's perception of his relationship with Mona.While there is evidence to suggest that Roger's affair with Joan played a role in his decision, it is important to note that it was not the sole reason for his departure. Roger's affair with Joan could be seen as a symptom of the deeper issues within his marriage to Mona, rather than the root cause.In comparing Roger's decision to leave Mona with other characters' departures or relationship dynamics in the show, it becomes clear that fear of irrelevance and the search for personal happiness are recurring themes. Similar to Freddy's exit, Roger wants one last chance at happiness and fulfillment, even if it means making questionable choices. However, unlike Don, who often prioritizes his own desires without regard for consequences, Roger may have recognized the potential consequences of his actions and felt remorse for his decision.In conclusion, the question of why Roger left Mona involves a complex interplay of factors, including communication breakdown, emotional distance, differing life goals, external influences, relationship stagnation, and personal growth. While the evidence does not point to a definitive answer, it offers valuable insights into the complexity of Roger's decision and the dynamics of their relationship.