Are you free of a wife? Then do not look for a wife.
If you marry, however, you do not sin,
nor does an unmarried woman sin if she marries;
but such people will experience affliction in their earthly life,
and I would like to spare you that.
"We know neither the moment of the consummation of the earth and of man, nor the way in which the universe will be transformed. The form of this world, distorted by sin, is passing away, and we are taught that God is preparing a new dwelling and a new earth in which righteousness dwells, in which happiness will fill and surpass all the desires of peace arising in the hearts of men."
-- CCC 1048