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
Ross Geller and Chandler's wedding that Rachel is pregnant, with the father unknown to everyone but her. In the season 8 finale, Ross’s daughter with Rachel named Emma Geller-Green is born, as a result of their one night stand prior to Chandler and Monica’s wedding. In the final episode of the show, when Rachel is moving to Paris for her job with a new fashion brand, Ross tells her at the airport that he loves her and asks not to leave. Rachel initially doesn't heed his feelings, but when the plane is about to take off, she realizes that she loves him