From the Mind of Trevor Stone

While writing my I Ching story I had cause to refer to the man in a concubine situation. "His wife" / "Her husband" are perfectly clear. We know the connotations of "His concubine,", but what is the word for the inverse relationship? "Her _____" The best I can come up with in a little thesaurus work is "consort," but that doesn't seem to carry all the meaning. Or is this one of those words that history has had little use for, since the story is rarely told from concubine's point of view?