Being the life of the party, Joe was a popular guy at work. If anyone seemed down for any reason, Joe could cheer them up. Behind this persona, the real Joe was a lonely man, had no children to brighten his off work hours and a miserable home life with a woman who no longer loved him.
When Joe came home in the evening he tried to maintain that false identity. It culminated in a depression that his mind couldn’t handle. The problem with a mask is sometimes you forget to take it off.