Ayn Rand wrote that "romantic love, in the full sense of the term, is an emotion possible only to the man (or woman) of unbreached self-esteem: it is his response to his own highest values in the person of another". Whether you ascribe to this view of love or the more selfless, altruistic love which many notable others write of, the promise is still the same; vow to be your spouses champion and friend. The best in us should uplift and encourage the best in others.