From one of my favorites:
If you are single today, the portion assigned to you for today is singleness.
It is God’s gift. Singleness ought not to be viewed as a problem, nor
marriage as a right. God in His wisdom and love grants either as a gift.
An unmarried person has the gift of singleness, not to be confused with
the gift of celibacy. When we speak of the “gift of celibacy,” we usually
refer to one who is bound by vows not to marry. If you are not so bound,
what may be your portion tomorrow is not your business today. Today’s
business is trust in the living God who precisely measures out, day by
day, each one’s portion.
Am I called to be single? I am today. And God uses singles in ways He will not use married people. Besides, most people do get married in their lives. Day at a time, all!