It’s easier for couples to get along when life is running smoothly. During tough times, holding on to harmony becomes more difficult. Shocker, right? Regardless of the obviousness of that statement, it’s important to recognize and build the skills that will aid your relationship when things are rocky. And relationship researchers have pinpointed several qualities that are prevalent among resilient couples. Flexibility. Empathy. Acceptance. Self-knowledge. Focus on these areas when your relationship is humming along nicely, and you’ll be more equipped to handle it when the terrain changes unexpectedly. After all, chance favors the prepared mind.