In Catching Fire? Katniss did
It Never Tells You
Peeta runs out of the trees and tells her that Cato is after her and is going to kill her. Peeta tells Katniss to run away.
Katniss and Peeta end up winning the Hunger Games, but Haymitch tells Katniss that she has outsmarted the Capitol and President Snow (president of the Capitol) isn't very happy with Katniss or Peeta. You will have to read the nest book to see what happens next.
Peeta and Katniss exchange stories during the Games. The popular story is that of Peeta giving bread to Katniss despite Peeta's parents requests. Katniss tells Peeta about how she got Prim a goat.
Peeta tells Katniss that she is not good at lying. He is proven wrong when he is later tricked by Katniss into consuming the sleeping syrup when she tells him it's a mix of sugar berries. He is also duped by Katniss because he thinks her feelings for him are real. He realizes after the Games, that she was only pretending.
Katniss' third visitor in the Justice Building is The Baker, Peeta's father. In his visit he tells Katniss he will watch over Prim, and gives Katniss cookies. Katniss is surprised, but grateful that he will look after Prim. Later on though, Katniss wonders if Peeta put him up to this and doubts his good intentions. She decides not to have anything to do with Peeta, and throws the cookies out of the nonmoving train's window.
Katniss is unsure about how she truly feels about Peeta (what is real and what is part of their act) which upsets Peeta. Katniss tells Peeta that "[t]he closer we get to District Twelve, the more confused I get".
She means FoxFace was your target you were supposed to kill here
He tells Katniss to kill him, but she can't. Instead, she grabs the red poisonous berries, Nightlock, that killed Foxface and Peeta catches on. They are about to eat the berries when Claudius announces that there are two winners: Katniss Everdeen and Peeta Mellark.
He tells katniss that peeta wants to be trained sepratly
It never says... It just has an epilogue which tells about Katniss and Peeta's children and that they are married :)
Catching Fire is the second book of The Hunger Games series. It tells about Katniss Everdeen and her second time in the Hunger Games. It tells about her bravery, strength, and "love" for Peeta.