The Ending of Deep Water - Explained

The erotic thriller starring Ben Affleck and Ana de Armas, Deep Water, is finally on Hulu after a series of missed theatrical releases. The only thing keeping their loveless marriage together is the agreement that Melinda can have as many lovers as she wants, so long as she doesn't abandon the family.
Throughout the movie, Melinda repeatedly tells Vic she loves him, despite his lack of passion in their relationship ultimately leading her astray.