There is no number, statistical or otherwise, with any real data to back it up as far as any absent spouse returning. It really doesn't matter. Choosing to stand or wait it out is a very personal decision and should be based on your commitment rather than a number that has been tossed into the ring.
Look not mournfully into the past. It comes not back again. Wisely improve the present. It is thine. Go forth to meet the shadowy future, without fear. {Henry Wadsworth Longfellow}
