Complex sentence: As each man comes to terms with his own fate, it's revealed that Lise is beholden to Henri because he and his family saved her life during the occupation, both she and Henri realize that it is time to let go.
Split into simpler sentences: As each man comes to terms with his own fate, it's revealed that Lise is beholden to Henri because he and his family saved her life during the occupation. Both she and Henri realize that it is time to let go.