Samantha Boardman and Aby Rosen were married Tuesday evening on the rooftop terrace of Rosen’s Upper East Side town house. The bride and groom both wore white — Boardman’s simple dress was made for her by Lela Rose — and Bronson van Wyck designed the flower-bedecked chuppah. The crowd included Serena Boardman, Dixon and Arriana Boardman, Pauline Boardman Pitt, Fernanda Niven, Rachel Peters, Kimberly Kravis, Celerie Kemble, Bob Colacello and John McDonald. Guests went down to dinner — pasta with caviar, filet of beef — where toasts were made. “I’m over the moon,” says the bride, who is now Dr. Samantha Rosen.