When Luke and the others are on the falcon, after they've escaped the Death Star, and Obi-wan has still been killed, I imagine that not only would Luke be pretty saddened by what happened, but because Ben died, he might also get pretty angry and emotional. Especially knowing that the gems and Jedi had been enemies for a long time. He might even start shouting accusations at them, which might go something like this:
LS: (smashes his fists down on the table) "Vader killed my father! Vader helped wipe out the Jedi, and Vader's troops killed my aunt and uncle!"
LO: "Luke, Luke, calm d-"
LS: "Vader's taken away everything I ever had! And I ran from him. Don't you understand that? Vader took away everything I had!"
(whirls to face the gems)
LS: "why?! Why didn't you try harder to save him?! Was it because you hated him for being a Jedi, when you gems seem to be some old enemies of theirs? Is that why you let Vader (or Jasper) kill him? Just let the Sith Lord (or Gem) do what you couldn't, let the dark side user destroy the light side user, and the problem will take care of itself from within? You seemed to be much more worried about saving Steven! How am I doing, am I close?"
LO: "Luke… Obi-wan had his reasons for doing what he did, the Force called him to a greater destiny, the Jedi always follow what the force guides them to do, even if we can't understand it. The only thing we can do now is get the plans to the rebel base."
LS: "but how am I supposed to deal with all of this, Leia? How am I supposed to go on now? I lost my family, my life, and my mentor to Vader, and heck, maybe the Sith aren't the only enemies to the Jedi, maybe these gems are too! How do we know they're on our side? Maybe we can't trust them any more than the empire!"
G: "THAT'S ENOUGH!"
(Shocked, stunned silence. Steven might be feeling pretty bad too, especially since he tried the hardest to save Kenobi, and had heard every word Luke said. He might be crying too, holding pearl's gem, who was poofed by Vader. And Obi-wan's saber, though Luke may not see that. Garnet might point out that they lost someone too, both with rose, and with Pearl, though Pearl isn't gone forever. And maybe Luke could say that maybe they don't know what it's like to lose someone, even though he might've seen amethyst get poofed and regenerated at least once by that point, blaster bolts and all, and knows that pearl will come back, but he thinks that they might not know what it's like to lose someone really important to them, but maybe around then, even though Luke might've heard something about Rose Quartz already, maybe even that she is steven, they'd clarify that she gave up her physical form to become a half-human, half gem hybrid, which is Steven. But they couldn't both exist at the same time, so, she basically died to create Steven. So, he'd find out that they do know what it's like to lose someone.)
LS: (notices Steven) "oh… I… Well… Steven, look, I, I didn't mean you're bad, you are the best little kid I've ever met, I'm… Sorry."
SU: "I'm not bad, and I'm not with the empire! And none of the Crystal gems are either! I trust them, and if you were thinking straight, Luke, you'd trust them too!"
G: "that's just the problem, he's not thinking straight. There's just too much he's taken on at once. And that can mess someone up. Bad."
LS: "Ben was all I had left, he helped me learn about the force, and my father, and about who I am, and, without him, I just don't know if I can really do all this. Without him, I don't know who I am…"
Pearl: "...listen, Luke. While it's true the gems and the Je'daii have had their… Issues in the past, I could tell that Obi-wan Kenobi wasn't like the ones the gems fought long ago, because they had to embrace their anger to fight us. He was good for a human, respectful, kind, wise, and truthful. And yes, He could teach you about magic, which he called the Force, but he could never, EVER teach you about who you are. That's never something that can be taught. It's something that comes from within you. That's what our leader, Rose Quartz believed."
LS: "maybe you're right, maybe I just… Wanted to hear more about my father. About how great a pilot and Jedi he was. And now, well, I can't ever hear anything else as far as I know..."
G: "do you need to know that to know how you are? To know who you are? To know that you're a great pilot yourself, and that you're beginning to be good with the force?" (Maybe it should say: "you don't need to know that, you already know who and what you are, and what you can do." Seems shorter and more to the point, like garnet is.)
LS: "no… But… What if I'm not as good as my father or Ben? What if I can't live up to all the good they did? What if… I let everyone down?"
A: "yeesh, talk about repeat, this is practically everything we told Steven when he was growing up."
P: "she's right. Rose Quartz was a great leader, and a good friend to us all. But in the end, Steven isn't rose, he's just himself, he's just Steven. And you're not your father, you're just Luke, and that's just fine. You just be you, and that's the only thing that really matters. And don't worry about learning more about the force, when the time's right, you'll learn more."
LS: "I… Don't suppose you gems could teach me anything about it, could you?"
G: (adjusts her glasses) "it's a strong possibility."
LS: "well, thanks, guess it may not matter who I learn it from. And, I'm really sorry for what I said, you've been really nice to me, despite me wanting to learn the ways of your old enemies. But, what if I'm not strong enough? What if I can't do what I need to do, and everyone dies because of me?"
G: "that's never an easy question, not even to someone who can see the possible roads someone can take. But you'll see soon enough that you're stronger, and braver, and smarter than you ever believed in before."
HS: "hey, much as I hate to break up this emotion-fest, right now, we have company! Four tie fighters followed us from that thing, and someone's gonna have to shoot the underside laser turret while chewie gets us into position for the jump to hyperspace!"
LS: "I'll do it, I'm itching for some payback on those imperials!"
HS: "then strap in, kid, things are about to get real hot real fast!"
