Headcanon for the Bunker:
There are many times in the bunker, especially within that first year, that Bryan considers either letting one of the grounders kill him, or doing something to get thrown into the fighting pit, so someone can kill him there. Despite all the fighting and how he’s become good at surviving, he’s at his breaking point. He’s lost his parents, his best friend Iris, his set of parental figures (Hannah and Pike), the love of his life (which is his own fault but that’s for the next headcanon post), and the rest of his friends are either a) in space or on the surface, or b) busy being bloodrina or close to her. He feels like he has nothing left to live for, and like he’s all alone for the first time.
However, he also feels like Harper, Monty, the rest of his friends, and especially @stellarstolen (because she’s super important in his canon verse in getting him to actually even /go/ to the bunker), would probably be super disappointed in him if they came back to earth only to find out that Bryan specifically went out of his way to give up and get someone to kill him. Also he feels like he’d be letting his parents, and Iris, and Hannah, and all the others that were killed before down if he took that route. And that’s the last thing he wants to do, is feel like he’s disappointing all of them.
So, he wakes up every morning, telling himself that he can do this, and that he can keep going and make his friends and family proud. Because ‘the world needs farmers’ right? And so he does his best, because he wants to help keep the rest of the people around him alive. He gets along with the grounders, and he becomes Wonkru, even if every day feels like a struggle.