Looking beyond marriage to our other relationships, here too the exhilaration of a new friendship with a person who seems to have much to offer us can lure us away from more predictable but lasting friendships we already have. It's important to nourish our ongoing friendships and not be quick to drop them in favor of a new one which may or may not last. Trading security for adventure. At the same time, God does wish to bring a definite measure of adventure into our lives. Psychologists recognize the desire for new experience as one of our basic human needs.
Contrast is essential to our vitality.
While this must not be the basis for leaving a comfortable marriage for a supposedly more enticing relationship, it's often a good reason for making career or lifestyle changes. The tragedy is that as we grow older and become more comfortable, we easily lose our willingness to risk. We place security above adventure. In his classic The Adventure of Living, Paul Tournier points out that we have an inherent need for adventure and stresses that this is a God-given instinct. I agree heartily with his concern and recommend this book as the best treatment I have seen of the role of adventure in human life.