Want feedback :)

We watch as the new sun grows closer and closer. Me and Jack. Jack and me. We do (and always have done) everything together, from staring out the window together to… well, to be honest, that is all we’ve been doing since we boarded ‘The Star’
Recently, though, things have been different. We still walk, talk and act the same way, but everything feels somehow tenser between us, and the rest of the guys on board, and we both know it.
As we both stare out the window, that long, immaculate, glass window, Jack does something that changes the story all together. He turns to me, and he says, “I can’t”
“C…can’t what?” I ask, surprised he’d said anything at all; usually the whole ship is silent as we drift further and further into space, and the space beyond that, and most likely the space beyond that too.
“I can’t take this anymore. We had potential. As humans. Our whole race did. We reigned supreme. Until we were forced onto these ships…” Jack spits as he speaks, glaring at the ground.
“I wouldn’t say forced...” I begin, but I am cut off by my friend, who replies with more venom than he had used before.
“I would. Can you remember what happened to Sadie?”
“Don’t” I say firmly.
Jack sighs. ”What potential do we have now?”
He waits for an answer. I am silent.
“Exactly. So what’s the point?” he says, as he looks at me sadly, then runs to jump out of the emergency exit door.