Paul and Michelle

Michelle left her job in Nice after an unpleasant situation with her boss, though the exact nature of the conflict is not detailed in the film. She moved to Nice specifically to find work after separating from Paul, and the problematic situation with her employer forced her to leave that position and seek new employment.

Paul's stepmother deliberately withheld Michelle's letters, preventing Paul from knowing that Michelle had been trying to contact him and that they had a daughter together. This kept Paul in the dark about his family for three years, forcing Michelle to raise Sylvie alone while believing Paul had abandoned them.

The withheld letters establish the central misunderstanding that drives the film's emotional tension upon their reunion.

Michelle discovered she was pregnant by Garry and felt unable to afford or manage another child while already caring for Sylvie and struggling financially after Paul's father cut off his allowance. She arranged an illegal abortion through medical student friends and kept it secret from Paul, likely to avoid adding more strain to their already fragile situation and because she feared his reaction to learning about her pregnancy by another man.

The argument erupted when Michelle came home from work and found Paul taking a break at a cafe with an attractive female classmate. While the cafe meeting itself was innocent, it served as the breaking point for accumulated tensions, fatigue from work and childcare, financial pressures, and Paul's reduced allowance had already strained their relationship, and Michelle's insecurities about loyalty surfaced.

Michelle concluded that their living arrangement in Paris was unsustainable. The combination of Paul's demanding studies, both their jobs, childcare responsibilities, and the recent argument had created too much strain on their relationship. She believed returning to the cottage in Camargue with Sylvie would provide stability, she would work in Arles to support Sylvie while Paul finished his Sorbonne degree and secured a better future for them.

Paul's father discovered that Paul was living with Michelle and their out-of-wedlock daughter Sylvie, which he found unacceptable. This paternal disapproval forced both Paul and Michelle to find employment immediately, dramatically increasing their financial stress and contributing to the strain in their relationship.

Despite his feelings for Michelle and resentment toward Paul during their summer in Camargue, Garry ultimately accepted her choice because he recognized that her love for Paul had never faded. When he visited Paris later to invite her to New York, he made one final attempt but respected her decision when she chose to stay with Paul, showing emotional maturity despite his disappointment.

During Paul and Michelle's heated argument about his cafe meeting, Sylvie wandered away from the apartment unnoticed. Paul and Michelle panicked and frantically searched for her throughout the neighborhood before finding her unharmed later that night. The incident underscored the fragility of their family situation and accelerated Michelle's decision that their living arrangement was not working.

The ending shows Michelle and Sylvie boarding a train to Arles while Paul stays in Paris to complete his studies, but it is portrayed as a temporary separation rather than a permanent breakup. Paul accepts the arrangement believing they survived a three-year separation before and can do so again. The final scene conveys hopeful endurance, Paul waves goodbye with sorrow but also resolve that their family will eventually reunite once he finishes school and secures a better life.

Michelle concealed the abortion from Paul likely due to the complicated circumstances, she was pregnant by Garry, not Paul, and the couple was already struggling financially and emotionally. Keeping the secret prevented adding conflict to their strained relationship, though it ultimately created greater tension when she returned home severely ill and Paul learned the truth.