A fundamental assumption underlying the formation of our most important relationships is that they will persist indefinitely into the future. As an acquaintanceship turns into a friend ship, for example, both members of this newly formed interpersonal bond are likely to expect that their interactions will become increasingly frequent, diverse, and intimate over time. This expectation is perhaps most apparent in romantically involved couples who, through a variety of verbal and symbolic means, make explicit pledges to a long-lasting relationship. In either case, it is clear that these...

A fundamental assumption underlying the formation of our most important relationships is that they will persist indefinitely into the future. As an acquaintanceship turns into a friend- ship, for example, both members of this newly formed interpersonal bond are likely to expect that their interactions will become increasingly frequent, diverse, and intimate over time. This expectation is perhaps most apparent in romantically involved couples who, through a variety of verbal and symbolic means, make explicit pledges to a long-lasting relationship. In either case, it is clear that these...