In this June 15, 2018 file photo, twenty dollar bills are counted in North Andover, Mass. It’s common for couples to butt heads about money once in a while. If you can discuss your differences with honesty and empathy, it’s an opportunity to emerge stronger than ever. But some issues are harder to solve, especially if one or both of you are secretive or controlling when it comes to money. (AP Photo/Elise Amendola, File)