George Eliot is not a man! It was just a pen name for Marian Evans.
Eliot had a live-in lover. True story: George Henry Lewes was Eliot's long-term romantic partner, as well as her agent. He was married unhappily and separated from his wife but they were unable to get a divorce (in those days, you could only get a divorce in cases of physical abuse or adultery). So he and Eliot lived together without being married. This was totally scandalous in those days, and some "respectable" people refused to visit them to show their disapproval. (Source)