Before the fall God determined that man should not be alone and that he needed a woman for companionship (Genesis 2:18). However Jesus is clear that in the resurrection there is to be no marriage, instead we will be like the angels in heaven (Matthew 22:30).
Although the Bible does not explicitly mention singleness as a gift from God, the apostle Paul does seem to suggest that he has the gift of singleness (1 Corinthians 7:7) and that he encourages others to ask God for this blessing.
In Paul’s letter to the Corinthians he appears to confirm that singleness is a righteous objective for a Christian to pursue. Although marriage is not condemned it’s safe to say that it’s not what God wants for our lives as it compromises our ability to follow God unconditionally.
Any yearning you may have for companionship should be seen like any other sinful desire our fallen nature conspires us to have. And since marriage inevitably leads to children our ability to convert the entire earth is undermined. How can we be expected to preach the gospel to the whole world when we continue to produce more people in need of God’s salvation?