Because his wife did not bury him, Sisyphus had a reason to return to the living to punish her. However, he never returned and lived to an old age, before finally accepting death.
I have done it! I have cheated death!
I'm happy that you are home, but I believe you may have angered the gods...
Once in the Underworld, Sisyphus faced the wrath of Hades for defying his power.
I know I tricked you lord Hades, but please show me mercy!
NO! For cheating death you shall roll a bolder up a hill. Once you have completed this task you may return.
From that day on, Sisyphus rolled the large bolder up a steep hill. However, anytime he got close to the top the bolder automatically rolled down again. Because of this, Sisyphus is forever stuck pushing the bolder, never to return to the land of the living.