Reunion

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