The Disease That Rots the World — Stephen Donald Huff

They are the outcast, forgotten, overlooked refuse of the world. Nothing matters to them, and they matter to no-one. He retains a zest for life, despite its futility, but she has decided to stop the train and step off. He will watch her go without a word, but she will take his heart with her. Sunset over the water and the two of them standing at the center of a high bridge. One must make the hardest choice of a lifetime.