“Welcome Home,” Herbert W. Franke, 1960 (or 1961?) – (short short) (Original title: Willkommen daheim) An astronaut returns to Earth. Now telepathic, he becomes estranged from humanity, including his unfaithful wife.
Comments: Read in The Black Mirror and Other Stories: An Anthology of Science Fiction from Germany and Austria.
Author: Wikipedia: “Herbert W. Franke (born 14 May 1927 in Vienna) is an Austrian scientist and writer. He is considered one of the most important science fiction authors in the German language. He is also active in the fields of future research, speleology as well as computer graphics and digital art.”