Casino.

She asked a dog to eat her heart, because heartlessness is the only key to a winning game.

She perfected a poker face, calculated her probabilities, blew her dice, bribed the dealer; she even kept a gun by her side, just in case. Some chips multiplied, some did not. After a few games, however, she realized that a winning game doesn't guarantee her happiness. She too realized that she had unconsciously developed an immense disgust towards all such games. To hell with those games, she thought, I wanna get the fuck outta here. She enjoyed only a few seconds of that thought, because she knew that whichever casino she goes to, she must still play these games.

So she puts that perfect poker face back on.