Monica Geller based the six main characters on some of their own friends and family; Monica is based on Kauffman herself. Observing that each main character was originally written as a "one-note stereotype", Jonathan Bernstein of "The Daily Telegraph" identified Monica as the group's "uptight fun-killer". When "Friends" first aired, the majority of its earliest episodes revolved around Monica, via whom each character appears to be interconnected; "Friends" stars the character's brother, her best friend, her former roommate and her two neighbors socializing in Monica's apartment. In the pilot, Monica is dumped almost immediately after sleeping with her new date Paul on
Monica Geller Monica and Ross' "wacky quirks become all the more understandable after ... seeing them with their parents." "Encyclopedia of Television Shows, 1925 through 2010" author Vincent Terrance believes that Monica's competitiveness originates from having grown up with Ross as a brother, against whom she often competed as a child. Kriti Tulsiani of IBNLive described Monica and Ross' relationship as "A blend of love and sibling jealousy with an urge to irritate each other to the deepest core of existence", with Ross often making fun of his sister's weight and Monica teasing him about his several failed marriages in return. In