Do You Think You Know the #1 Cause of Divorce? September 24, 2015September 23, 2015 | Abby Kelly The Number One Cause of Divorce Fill in the blank: The number one cause of divorce is: ___________. I bet you’re curious now, right? Or do you think you know? Check out this wonderful piece by Darby Dugger posted on A Delightful Glow.