A Fool There Was by Porter Emerson Browne audiobook.
Two friends were asked by their respective fathers on their death beds to promise to marry a special girl, who lived across the street and who they had been very fond of since childhood. Once they reached young manhood, one of these fulfilled his father's wish. The story takes off from there, and, while all three continued to be very close to one another as they grew older, the married man was sent abroad on business, allowing his friend to take care of his wife and child while he was away. While overseas, the married man fell into temptation. Many twists and turns, as well as surprises were to follow, rendering the reader curious as to how it would all turn out