Greg and I went out tonight, first to look at rings (too expensive, we'll get one off ebay) and then to The Melting Pot for their Skinny Dipper menu, a lighter form of their regular 4 course dinner. Still plenty to fill you up.  And to answer the question, his ring just slipped off. He's lost enough weight that it wasn't fitting as well. Add in winter and cold, dry hands, and you have a recipe for sad.