Winning Back (1915)

Ruth Castle plans to surprise her husband on their fifth wedding anniversary with a very elaborate dinner and promises their two little children that they may eat at the big table that night. Rex, her husband, is infatuated with Yvette, a dancer, and, having forgotten all about the anniversary, has a date with Yvette, whose birthday it is. He buys Yvette a beautiful diamond necklace which he leaves in his overcoat pocket. Ruth peeks in his pocket for her expected present and discovers the necklace. She is much surprised when Rex leaves without having given it to her.