Monica Geller Scott Silveri and Shana Goldberg-Meehan, who first observed the characters' chemistry in the season two episode "The One Where Ross Finds Out", in which an idle and unemployed Monica is temporarily acting as Chandler's personal trainer. However, Silveri's suggestion was initially vetoed by the other writers, who felt that it was simply too soon to introduce another main couple to "Friends" having just recently paired off Ross and Rachel. Following Ross and Rachel's break up in season three, the writers felt that the timing was just about right to officially introduce Monica and Chandler as a couple, deciding that "Friends"
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