Monica Geller terms of ethnicity, Crane confirmed that both Monica and Ross are half-Jewish, with their father being Jewish and their mother being of non-Jewish European ancestry. However, "Television's Changing Image of American Jews" categorized Monica as a "masked" Jew, explaining that "the smart, funny, and insecure Ross seems more Jewish" than Monica, who the author dismissed as "china-doll like" in appearance and demeanor. In his book "Encyclopedia of American Jewish History, Volume 1", author Stephen Harlan Norwood agrees that, unlike the show's male Jews, Monica's Jewish "markers" have been virtually removed. Although Monica and Rachel have remained best friends since high
Monica Geller "can't simply rest on this one [Ross and Rachel] relationship", while believing that Monica and Chandler's would ultimately provide a fun opportunity for the writers to explore brand new storylines. Silveri and Goldberg-Meehan deliberately intended to keep Monica and Chandler's union "low-key" in order to further differentiate it from Ross and Rachel's, which had been very public. In order to get an idea how audiences would react to Monica and Chandler hooking up at Ross and Emily's wedding in London, the scene in which a clearly nude Monica suddenly emerges from under the sheets of Chandler's hotel bed was filmed