I think it's part of the human condition that many of us feel lonely, if not all the time then at least from time to time. And if you're single, it's easy to think the antidote for loneliness is matrimony. But according to Henri Nouwen, those who marry because of loneliness will likely end up as lonely spouses. Our condition is not changed by our circumstance.
We ignore what we already know with a deep-seated, intuitive knowledge - that no love or friendship, no intimate embrace or tender kiss, no community, commune or collective, no man or woman, will ever be able to satisfy our desire to be released from our lonely condition. This truth is so disconcerting and painful that we are more prone to play games with our fantasies than to face the truth of our existence. Thus we keep hoping that one day we will find the man who really understands our experiences, the woman who will bring peace to our restless life, the job where we can fulfill our potentials, the book which will explain everything, and the place where we can feel at home. Such false hope leads us to make exhausting demands and prepares us for bitterness and dangerous hostility when we start discovering that nobody, and nothing, can live up to our absolutistic expectations.- Henri Nouwen, The Wounded Healer, pp. 84-85.
Many marriages are ruined because neither partner was able to fulfill the often hidden hope that the other would take his or her loneliness away. And many celibates live with the naive dream that in the intimacy of marriage their loneliness will be taken away.