His calm voice no longer reassures her because she now understands that trust has already been broken. With a dispatcher on the phone, she keeps her distance while the monitor continues replaying the conversation he never intended her to hear.
As sirens approach, her husband’s confidence disappears. He backs away from the door, insisting that police are unnecessary, but the narrator stays where she is until officers arrive outside the house.
When police finally announce themselves, she unlocks the bathroom door. Still shaken, she steps out with her son knowing that she no longer has to face the situation alone.