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.
Gale had been manipulated and used by Coin's military just like Katniss had, but he didn't mind. He believed that these evils needed to be done for the greater good, and though he regretted Prim's death, the strategy had freed Panem.
The problem was that Gale was the one who created the firebomb devices. Despite not being fully responsible, Katniss couldn't overlook his possible involvement. Katniss returned to District 12, where she reunited with Peeta after she couldn't allow herself to fully forgive her childhood best friend.
To him, the capital is bad for their treatment of the districts and the existence of the hunger games. Yet to those capital people, HE is a bad guy as he is simply an ungrateful recipient of the capitols mercy and respite.
On the other hand, while Gale also wants to create a better world, he tends to be more violent. Gale is resentful and believes the ends justify the means. While Gale's strength was necessary to win the war against the Capitol, Peeta's peaceful personality is ultimately what Katniss needed in a person.
The Life of Gale Hawthorne: Transformation Explained (Hunger Games Breakdown)
Did Katniss ever forgive Gale?
Although she will never know for sure, Katniss does recognize that she cannot be with Gale. She will never be able to forgive him for his idea — the parachute bombs — that killed Prim.
There are two reasons why Katniss chose Peeta instead of Gale. Gale was partly responsible for Prim's death in Capitol. Katniss wanted someone to calm her down and soothe her, and she knew only Peeta can do that and Gale will only rebel against the Capitol.
After Prim's death, Gale leaves voluntarily because neither of them can avoid the matter of Prim's death having been caused by Gale's invention, with Katniss letting him go without a word. Katniss subsequently grows back together with Peeta, whom she finds she loves again now that he is recovered from his hijacking.
She later realizes, after a conversation with the imprisoned President Snow, that President Alma Coin sent Prim to her death (which was caused by a hovercraft by the rebels) both to sway the Capitol citizens to Coin's side by making them think Snow was bombing the children, and to swing Katniss to her side through the ...
When Katniss comes home to District 12, Gale immediately confesses his love for Katniss, and she realizes she might have feelings for him, too — but she can't explore them, because she has to continue her fake relationship with Peeta or else her entire family, including “cousin Gale,” will be killed.
The double bomb that kills Katniss Everdeen's sister, Primrose, was designed by two rebels: Beetee and Gale, Katniss's lifelong friend. Previously, Gale had explained that the double bombs are designed to appeal to mankind's weakness for compassion.
Gale does not marry anyone in The Hunger Games. He and Katniss talk about running away together and starting a new life in the wilderness, but they never officially marry.
Katniss feels betrayed, most of all by Haymitch, who used her and Peeta. Eventually she wakes to find Gale there. He's badly injured and tells her the Capitol bombed District 12 after the Games. He got Prim and Katniss's mother out in time, but the District 12 is gone.
When Gale is most in pain is when Katniss kisses him, and this is true again as we see her answer Gale's pain with a kiss. She wants to give Gale what he wants, but she can't yet completely commit to him, as she must think of her family and Peeta and being the Mockingjay for the revolution.
Now, the cat has somehow made it from District 13 back to District 12 on foot. Katniss yells at it because the cat reminds her of Prim and she's sad about Prim's death.
8. He listened to her, even when he disagreed with her. Gale didn't always agree with Katniss, but he spent the entirety of *Mockingjay — Part 1 * following her around like a faithful golden retriever. He respects Katniss' decision-making skills, and isn't intimidated by the fact that she's a female leader.
Before the Capitol battle, Gale had explained to Katniss his series of bombs designed to feed off human compassion: a small bomb would go off, and then when medical aid rushed in, a second bomb would go off, killing those people as well. Incidentally, it's this exact type of bomb that took Prim's life.
Prim was among the medics who arrived to treat the victims. Unfortunately, a second batch of bombs were set off, with Prim being killed in the explosions.
While Prim is caring for the wounded, a second set of bombs go off, killing her, along with everyone around her. This act of treachery and shameless targeting of the innocent is what finally turns President Snow's guards against him. They believe he is to blame, when in reality, Alma Coin was responsible.
Answer and Explanation: Prim is killed by a bomb at the very end of the battle. Alma Coin sees an opportunity to turn the Capitol troops against Snow, and she decides the resulting loss of life from her plan is a worthwhile price to pay.
We were told that he didn't have the time to save everyone, and that is the most likely reason. But some people believe Gale may have had more malicious reasons for not helping them. However, Peeta's family wasn't great. His parents were abusive, or at least distant.
Alma Coin was the true villain of The Hunger Games, with Katniss actually seeing her as more of a threat than Coriolanus Snow. At the same time, it was Snow who was made out to be the bad guy in previous movies, making some question why Katniss killed Coin and spared 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.
At the end of Mockingjay, Gale relocates to District 2 and begins working in the district's government. He helps train replacements for the Capitol's Peacekeepers.
