During the season one series finale, while Allison is in Brooklyn, she is wearing a green flowered print cotton dress. The garment has a sizable split in the left side seam. Since the same garment is worn in several scenes, one must assume this was an intended wardrobe failure and not an oversight of the production designer.
With 0.759 million viewers, this was the most watched episode of Season 1. The Affair (2014) was unusual in that audiences climbed with each successive episode, peaking here with the season finale.