Johanna attacked Katniss to take the tracker out of her arm, so that once Katniss was in a District Thirteen plane, the Capitol could not track her. Johanna had to attack her because it also had to be seen that Johanna was breaking the alliance between the tributes.
Even though the two were now allies, they still didn't trust each other. During the escape from the arena at the end of these Hunger Games, Johanna 'attacked' Katniss for the purpose of removing a tracking device from her arm, then lead Brutus and Enobaria, the District 2 tributes, away from Katniss.
In the case of Johanna, they each hated each other because that was what the Capitol had taught them to do. They were from competing Districts, and the idea of the Games was to keep the lesser citizens of Panem distrustful of one another and unwilling to form alliances (or raise arms in war).
Johanna remains in the Capitol for quite a while, and she and Peeta are tortured for information concerning District 13 and the mockingjay rebellion. While in the Capitol, Johanna's entire head is shaved, making her bald. Johanna after she is rescued from the Capitol.
Katniss, drugged and recovering in District 13, dreams of Peeta. She wakes to find Johanna Mason stealing Katniss's morphling drip. Katniss had been spared serious injury thanks to Cinna's armored Mockingjay costume.
The Life of Johanna Mason (Hunger Games Explained)
Does Johanna have a crush on Peeta?
Ever since their first meeting in the elevator, Johanna Mason has had her eye on Peeta. Even though she came off as cold and distant, she was never afraid to show her admiration for Peeta. In that same scene in The Hunger Games: Catching Fire, Johanna asked Peeta how he felt now that everyone wanted to sleep with him.
Katniss is unfazed by his flirting, and admits that while he is attractive, she has never been drawn to him. At first, Finnick appears to be another shallow puppet of the Capitol's. She says that she's never been attracted to him and that is possibly because she has found him too easy to lose.
Peeta later explained to Katniss that Johanna did this to get a reaction, since she and the other tributes obviously saw Katniss as being the most "pure" of the Victors.
Johanna asks what happened to Mags, and when Katniss tells her she says Mags was Finnick's mentor and half his family. She also explains that she saved Wiress and Beetee because Haymitch told her that if she and Katniss were going to be allies she had to save them for Katniss.
Johanna Mason developed an addiction to morphling while hospitalized in District 13 for the torture she endured in the Capitol. When she was weaned off, she instead dipped into Katniss's supply.
The female Morphling, however, appears almost coincidentally, and Peeta even mentions that they don't know her real name. Given that she is willing to make the ultimate sacrifice to protect Peeta, it's safe to assume that the Morphling was committed to the rebel cause.
The following year after Lucy Gray Baird's victory, another female tribute emerged as the Hunger Games winner. Mags Flanagan became the first victor from District 4, living off of nuts and her survival skills by creating fishhooks. She was also the first victor to move to Victor's Village before serving as a mentor.
Haymitch is already drinking, and Peeta gets angry with him because he's supposed to be advising them. He slaps the drink out of Haymitch's hand. Haymitch punches him, and Katniss stabs her knife into the table between his hand and the liquor bottle.
Peeta used the dyes to paint a picture of Rue after Katniss covered her with flowers when she died. He says he wants to hold them accountable for killing Rue, and Effie tells him that that kind of thinking is forbidden. Katniss then tells the team she hung a dummy of Seneca Crane.
The plan is to break the victors out of the game and start the rebellion. They need Katniss because of her power and influence, but they know she won't join if Peeta dies, so they work to protect them both during the Quarter Quell.
Later, the two learn President Snow considered their actions to be an act of rebellion against the Capitol. After their last interview, in which the two continue to affect their romantic feelings for one another, Peeta comes to the realization Katniss has staged her love for him all along.
In a way, Finnick has outsmarted Katniss here by saving Peeta's life. Now Katniss "will never stop owing Finnick." He's done her the kind of favor she can't easily pay back; now she can't let him down.
The blood rain started and they were all unable to see and talk. Then Blight ran into the forcefield and was killed. When the bloodrain ended, Wiress became mentally unstable and all she could say was "tick, tock", hinting that the arena was a clock.
Chaff, of course, comes right out and kisses Katniss, though his reason is more to have fun with Katniss's image than to turn it to his advantage. Finnick's and Johanna's tactics, however, are clearly deliberate attempts to manipulate Katniss, and Katniss immediately distrusts both as a result.
Peeta, Johanna, and possibly Annie were held in adjacent cells. As part of their torture, they were forced to listen to each other's screams. Johanna was starved, beaten, had her head shaven, and she was soaked with water and tortured with electric shocks. This caused her to develop a fear of water.
Answer and Explanation: Johanna survives in Mockingjay. She is rescued from the Capitol along with Peeta and brought back to District 13. While Peeta is able to push past his trauma in order to help Katniss, Johanna is deemed too unstable to send with Katniss' team.
Chia Mags kisses Finnick on the mouth to briefly let him know that this is the last time she will see him. It's her way of saying "Goodbye" but in a more affectionate way.
Finnick was willing to give up Mags to save Peeta because he needed to, to convince Katniss they were on the same side. He receives a large cut in his leg when he was trying to save Peeta. During the events of Mockingjay, Finnick shows concern for Peeta, and goes out of his way to save Peeta's life again.
After winning the games, Snow forced Finnick into prostitution and sold his body to Capitol residents to gain their trust. Finnick only agreed to take part because Snow threatened to torture his loved ones. Even though he bedded several women throughout his time as a victor, Finnick's love for Annie remained true.
