This is what people mean when they refer to “a lack of communication.” Verbal communication—what we say to one another and how we say it, the amount and depth of our revelations about ourselves, the spirit in which we say what we say—is one of the most important means of sustaining emotional closeness. When there is a breakdown in any form of communication—verbal, sexual, affectionate, emotional—there is a breakdown in the relationship that is experienced as emotional distance.
Emotional distance occurs when you come to the place in your own consciousness where, for whatever reasons, you have moved away from your relationship. You are, in a sense, holding back your emotions and expending them elsewhere. It's as if you've got money, but you're not spending it at your partner's store anymore