He startled Katniss with his proposal for an alliance, and although she was initially unsure, she accepted his offer after noticing his golden bracelet - identical to the one Haymitch Abernathy had worn earlier - knowing that it's Haymitch's nonverbal way of telling her to form an alliance with Finnick.
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.
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.
Finnick is also a loyal friend to Katniss and Johanna, whom he acts as a mentor to throughout various Games. However, his most important relationship is with his one true love, Annie Cresta.
She expected their years of friendship would make it harder to kill. But she knows her one and only true ally is Peeta, so she decides she must kill Finnick now. Katniss climbs down from the tree, determined to kill him now before he has the chance to kill her.
Katniss Looks for Allies | The Hunger Games: Catching Fire
Why did Finnick try so hard to save Peeta?
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.
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.
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.
Finnick, along with Mags (who volunteered for Annie) were the tributes for District 4 in the third Quarter Quell. He met Katniss Everdeen at the Remake Center before the opening ceremonies and flirted with her, informing her that his lovers in the Capitol pay him not with money but with secrets.
Finnick learned many secrets, including that Snow, in his rise to power, poisoned his adversaries but to divert suspicion often drank from the same poisoned cup followed by an antidote that only Snow used. Segments of the propo of Katniss and Finnick are aired.
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.
It's a horrifying death, though Katniss puts him out of his misery when she sets off an explosion in the sewer to free him of his pain. At the time of Finnick's death, he was either only 24 or 25, making The Hunger Games loss even more devastating.
At an unknown point in time years before the 74th Hunger Games, she was personally fired by Snow, the stated reason being due to her being too surgically enhanced.
Did Peeta actually have a crush on Katniss before?
Often, he would stare at her in school. Sometimes Katniss would make eye contact with him, only for his eyes to quickly flit away. During an interview with Caesar Flickerman preceding the Games, Peeta admits on national television to having a long-standing crush on Katniss.
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.
Why is Katniss furious at Finnick even though he had just saved Peeta's life?
As they walk, Katniss wonders why Finnick didn't just let Peeta die. She is angry at him because she now owes him for saving Peeta's life — she can never kill him now.
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.
As Katniss gets to know Finnick during the Quarter Quell, she sees he is in fact loyal, dutiful, and caring. For example, despite Mags being a burden on his chances of survival, Finnick does everything he can to keep the eighty-year-old alive because, as we learn, she was his mentor and he genuinely cares about her.
Gale was responsible for creating weapons that would trigger a second wave of bombs to target first responders and combat healers. This invention potentially ended up killing Prim, but even if he wasn't directly responsible, Katniss found this tactic so abhorrent that she lost her affection for him.
It's only implied that they get it on via snuggling and other affectionate acts in close quarters — but if you have read the book, they really imply that they took their relationship to the next level.
It was also insinuated that the lead heroine believed that Mags previously suffered from a stroke, which would have cleared up her limited communication. Some fans had theorized that PTSD could have been a factor when it came to Mags' lack of talking, or possibly just her old age.
While the Hunger Games film never talked about it, the Catching Fire novel explained why she could only communicate through hand gestures. Katniss briefly mentioned that a previous stroke could have caused Mags' garbled speech. However, post-traumatic stress disorder could have also caused her speech incapacity.
The group eventually outruns the fog except for Mags, who sacrifices herself so that Finnick can help Katniss save Peeta. They trip and tumble down a hill but eventually stop, and Katniss watches the fog approaching. It stops just before it can get to her because it is being contained by some type of force field.
