When you’ve got a personal life as unusual as that of Mary Cosby, there’s bound to be a ton of misinformation out there. The Real Housewives of Salt Lake City star has drawn more headlines than any other cast member before the show has even aired. Right off the top, we’ll try to clear the air: Yes, Mary Cosby’s husband is also her grandfather. No, the two are not related by blood. Yes, technically the man Mary married is her *step* grandfather. And no, the story of how they came to be wife and husband is not like any other in Real Housewives history.