The French use the term, ennui. It is a kind of boredom that comes from living in an emotional vacuum, an existence in which no one is either happy or unhappy. Just an easy, comfortable, predictable, routine existence punctuated with brief moments of either joy or sadness.
As time passes in our relationship, we realize exceptionality or even survival requires more than the loving touch of a power beyond our knowing. Relationships are what we work to make them.