It is natural in a marriage for shifts to take place, and these can be navigated smoothly with open communication.
However, there is also much to be said for having a turn to be the one stepping outside the box, perhaps taking time to attend to our personal healing, spiritual pursuits, or other interests. In order to maintain balance within our relationships, it's important that we address these issues each time one person steps into a supporting role so the other can try something new. When we are conscious about acknowledging that one person is bearing a bit more of a burden so that the other can grow, we stand a better chance of making sure the ebb and flow in the relationship remains fair and equal.
The most important part of this process is open communication in which each person has a chance to express how they feel and come to an understanding about the roles they have agreed to play and when they expect them to shift. Each time a dynamic shift occurs, a ceremony of acknowledgment can lend an air of distinction to the moment. This can be a simple dinner date or an elaborate ritual, depending upon what works best for us at the time. Perhaps the most important thing is expressing gratitude to the person in the supporting role and encouragement to the person moving in a new direction. When the flow of feeling and communication is open, a healthy closeness develops that allows each person in the relationship to have a turn at each of these important roles.