Spouses who are very emotionally connected as friends know each other especially well. They consistently show a keen interest in what is going on in their partner's life. They are familiar with their mate's dreams, goals, friends, foes, challenges, joys, etc. They share multiple points of connection. I have worked with many couples who are so busy they do not have much cognitive room for what is happening in their spouse's life and as a result they have drifted into more separate and parallel lives. They may even feel lonely in their marriage.