See below: 4. Irving and Katt (above) had dated a year before making "Carrie." Their screen test included a makeout scene in the back of a car, a scene that didn't end up in the movie. 5.
While the reunion with the-one-who-never-got-away was somehow inevitable, the decision to give Carrie - and all three of her girlfriends - a happy ending courtesy of a man raised a few eyebrows.