Jill Zarin griped about the locations of her book parties compared to those of her former “Real Housewives of New York City” co-star Kelly Bensimon. When Zarin walked into a party for Bensimon’s book, “I Can Make You Hot: The Supermodel Diet,” at Asellina in the Gansevoort Park Hotel, Zarin was overheard whining about how she didn’t have such luxury to promote “Secrets of a Jewish Mother,” which Zarin co-wrote with her mother and sister. “People were looking at Jill and were embarrassed for her.”