Descartes’ Demon is a maker of dreams and illusions. He has made your world, keeping you from his world. He must at times be sad that he cannot join his beautiful, sad, dramatic creation; or at least wonder why he has no monster to relieve him of the monotony of pure being. You have different problems though. You are stuck with his illusion, but you can choose to live it as life or as a lie. Do not anguish too much over your choice. Skepticism being what it is there might not be much difference.