Finnick OdairJohanna and Finnick were friends prior to the 75th Hunger Games, most likely having formed a bond during previous Hunger Games where they were mentors. They were allies during the 75th Hunger Games, along with Wiress, Beetee, Katniss, and Peeta.
Johanna and Finnick seem to have a close bond. IT is unknown how they know each other. They may have just been friends, as most victors tend to make friends with other victors.
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.
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).
Up until almost the end of the book, Katniss is mad that Johanna betrayed her and tried to kill her in the arena. She sees it like this: Johanna knocked her out, cut her up, and left her for dead. It's not until the very end that Katniss finds out that Johanna was working to save her life.
Since Haymitch Abernathy's family was killed after his Games, and he mentioned Johanna's name when he spoke about being held up as an example to younger victors, it's commonly theorized that Johanna refused to be sex trafficked as Finnick had been, so her loved ones were killed in retaliation.
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.
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.
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.
Their relationship was all friends. They trusted each other, but that doesn't mean they had romantic feelings for each other. Plus, Cinna's too old for Katniss.
Katniss made the choice to build her future with Peeta. If she didn't love him, she wouldn't have made that choice. Katniss made her whole world about getting the people she cared about to the next day, her choice to survive with Peeta proves her love for him.
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.
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.
After winning the games, Finnick was forced into prostitution by President Snow. He was blackmailed into going out with wealthy citizens of the Capitol for the safety of his loved ones, such as his District 4 sweetheart and fellow victor Annie Cresta (Stef Dawson).
During the 70th Hunger Games, Annie witnessed her fellow District 4 male tribute's beheading, which drove her to insanity. She has certain problems which included her closing her eyes and covering her ears, laughing when it was unnecessary, and staring into the distance at strange times.
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.
Yes, Katniss did develop an addiction to the morphling, on account of constantly being sedated with it, however, I wouldn't say that she was an addict. An addict is someone who goes to a substance (or whatever their 'poison' may be) under their own mind.
Finnick rushes to resuscitate him as he knows he needs Peeta alive to keep Katniss going. Another clue that he is in on the rebel plan comes when Katniss is about to kill him with her arrow, and he tells her, "remember who the real enemy is," which is something Haymitch said to her before the games.
Jena Malone is no stranger to extreme hairstyles, but she'll let you in on a secret: That's actually a stranger's shaved head, not hers, that you're seeing in the new "Hunger Games" flick.
Johanna Mason, from District 7 and another major character during the revolution, is around the same age as Finnick and Annie. Johanna won the 71st Hunger Games when she was 17 years old, meaning that she's around 21 or 22 old during Catching Fire and Mockingjay.
Or, as Malone joked on Jimmy Kimmel Live, "I had a stunt head!" Malone described to Jimmy Kimmel just how Johanna's bald look was created, revealing that it was a combination of CGI and a stand-in (though she did have to shave the back of her head, just at the top of her neck, to make it as seamless as possible).
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.
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.
