The only way to restore flow to the relationship is by finding new challenges in it. These might involve steps as simple as varying the routines of eating, sleeping, or shopping. They might involve making an effort to talk together about new topics of conversation, visiting new places, making new friends. More than anything else they involve paying attention to the partner’s own complexity, getting to know her at deeper levels than were necessary in the earlier days of the relationship, supporting him with sympathy and compassion during the inevitable changes that the years bring.