Lily's habit of not keeping secrets

Lily Aldrin has a habit of telling people secrets. Over the series, she has told over 20 major secrets and kept only a few.

It was first highlighted in Purple Giraffe.

Secrets told by Lily[]

In Purple Giraffe, Robin tells Lily that she's looking for a casual relationship, and Lily promises she won't tell anyone. She immediately breaks the promise by telling the rest of the gang.
In Slap Bet, where she tells Barney Stinson that Robin is not married making Barney temporarily win bet and slap Marshall.
In Little Minnesota, Lily tells secrets throughout: Heather is coming for Christmas to Barney Stinson, Robin is getting Ted an iPod to Ted, she will be spying on Barney and Heather to Barney and Heather, Lily then where trying to hide from Ted that Barney and Heather had sex in Barneys office
In The Leap, Lily deliberately tells Barney that Robin's love confession to him was faked in an attempt to scare him off.
In The Over-Correction, Lily tells the rest of the gang about Robin's attempt to seduce Barney, despite being asked not to.

In a majority of Season 3, Lily hides from Marshall that she has a huge credit card debt.
In the entire Season 9, she hides from everyone that Ted Mosby plans on leaving New York City the day after the wedding.
In Daisy, it is revealed that Lily had been hiding her pregnancy since last night.

	Lily Aldrin	v • t • e

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