Monica Geller altered the trajectory of the entire series, having life-changing effects on its characters. Summarizing the role of Monica in the series, Martin Gitlin wrote in his book "The Greatest Sitcoms of All Time" that while her friends "were ... just out to make the most of their social lives", Monica "sought to keep the others in line" while searching for "Mr. Right", who surprisingly turns out to be close friend Chandler. Several years before Monica and Chandler became romantically involved, Cox once joked in an interview that if her character were to ever have sex with another main character, it
Monica Geller role in the pilot, which he considered "casual sex", and created a "stacked" questionnaire asking audience members if they thought Monica was a whore. Kauffman recalled Ohlmeyer specifically expressing that Monica deserved to be dumped, a statement by which the writer was greatly offended, dismissing Ohlmeyer as a misogynist. Ultimately, the results returned in favor of Monica; audiences liked the character nonetheless, and the episode aired unchanged. Early in the series, Monica's apartment is established as one of the show's two primary locations. In the pilot, the apartment number is 5, which was changed to 20 in subsequent episodes after