"You come to know God through behavior, not ideas. It’s the way you act in your marriage that is a reflection of how much you understand God." - Dr. Jennifer Finlayson-Fife
When you belong to a religion in which Eternal Progression is a core belief one thing is certain, you will absolutely change and evolve and grow over time. As you change and grow, your relationships also transform.
In order to ensure your relationship is one worthy of Celestial glory, you have to make sure your growth brings you closer together and doesn't pull you apart.