And then the Fight started

My  wife and I were sitting at a table at her high  school reunion, and she kept staring at a  drunken man swigging his drink as he sat alone at a nearby table.
I asked her, "Do you know  him?"
"Yes", she sighed,
"He's my old  boyfriend.  I understand he took to drinking right after we split up those many years ago and I hear he hasn't been sober since."
"My  God!" I said, "Who would think a person could go on celebrating that long?"
And then the fight  started...