Here is Ask Amy advice:
Dear Love Story: This is not a mess that will be easily "tidied." Your wife and children will likely be bewildered, and you'll be spreading a lot of hurt around. NONE of this is their fault. Your choice to leave your family, and to sell the family home and relocate them to another one -- all of this -- is on you.In other words, you must tell the truth, but don't even consider telling the truth.
You must tell the truth. I mean, come on -- don't you think your family will figure this out when you and your ex quickly head off into the sunset? ...
Telling your wife of over two decades that you have (basically) never loved her should be off the table.
Saying "NONE of this is their fault" is probably another lie. If a man has an unhappy marriage, the wife probably has something to do with it.
I quote from the Peanuts meaning of Christmas:
And there were in the same country shepherds abiding in the field, keeping watch over their flock by night.This was a daring broadcast in the 1960s, because the network executives told Charles Schultz that it was illegal to quote the Bible on network TV.
And, lo, the angel of the Lord came upon them, and the glory of the Lord shone round about them: and they were sore afraid.
And the angel said unto them, Fear not: for, behold, I bring you good tidings of great joy, which shall be to all people.
For unto you is born this day in the city of David a Saviour, which is Christ the Lord.
And this shall be a sign unto you; Ye shall find the babe wrapped in swaddling clothes, lying in a manger.
And suddenly there was with the angel a multitude of the heavenly host praising God, and saying,
Glory to God in the highest, and on earth peace, good will toward men.