Francie Jarvis, portrayed by Emily Bergl, turns up again early in Season 3. We first met Francie in the previous season, as the President of the Puffs, a supposedly powerful secret sorority at Chilton that Rory and Paris almost joined. It was a rather silly story line that went precisely nowhere, but we now discover it was just to set up this silly story line that goes nowhere in Season 3.
Francie is now the president of the senior class, and is using all her mighty influence … to get skirt hemlines raised an inch and a half. Apparently this requires all sorts of backdoor machinations, such as kidnapping Rory into a girl’s bathroom and making her fulfil Francie’s evil scheme! The evil scheme to get hemlines raised slightly.
Oddly, Francie never acknowledges that she knows Rory and Paris well enough to have begun the process of accepting them into the Puffs – something which went very, very wrong for everyone except Rory. Possibly this helps explain Francie’s antagonistic attitude towards Rory and Paris.
Note that Francie first speaks with Rory while looking in the mirror, to indicate duplicity and double dealings – not to mention that Rory is “through the looking glass”.
The Annotated Gilmore Girls 