-Luke tells Leia she’s his sister and leaves
<Luke> Leia, can I talk to you for a minute?
<Leia> Sure. What’s wrong?
<Leia> *interrupting* You’re madly in love with a woman, and need sisterly advice on how to tell her?
<Luke> No, actually, it’s...
<Leia> You’re going to leave the Jedi Order? How could you? Is it because you left a girl on Tatooine?
<Luke> Would you just let me finish? I’m...
<Leia> You’re joining the Empire, aren’t you. It’s because of their E-11 blaster rifles...or better yet, it’s because of a certain female officer you met on the Death Star.
<Luke> Just...listen. I’m...
<Leia> Going to...sorry, I’m just trying to make up for 18 years of not being your sister.
<Luke> That’s just it. I have to tell you that I’m your brother.
<Leia> Yeah, we established that back on the first Death Star.
<Luke> Yes, we did, but I just felt like you needed to hear it here.
<Leia> Wait, if you’re my brother...that means...Darth Vader is your father.
<Luke> My father? That’s not true! That’s impossible!
<Leia> Well, if you’re related to me, and I’m related to him...yeah, you’re definitely related to him.
<Luke> No...maybe...Mom got remarried and I’m not related to him.
<Leia> We’re twins.
<Luke> I...I’m disowning him! I’m disowning the Skywalker name! I’m now becoming...a Groundcrawler!
<Leia> Isn’t that kind of a demotion from Skywalker?
<Luke> Fine, then, I’ll be Luke Spaceflier.
<Leia> Ok. Wait, if you’re disowning the Skywalkers, then you’re disowning me, too!
<Luke> I can’t do that. You’re my sister!
<Leia> And Darth Vader’s your father.
<Luke> I know, you can become a Spaceflier, too! Leia Organa Spaceflier...it’s got a nice ring to it.
<Leia> But what about Mom?
<Leia> Yes, Mom. You know, Mother? The one who gave birth to us? She retired from the Senate and has a summer home on Naboo that she lives in all year round. Every so often, she would come to Alderaan to see me.
<Luke> Fine...I’ll stay a Skywalker. But I’m leaving.
<Leia> Why? We need you here!
<Luke> That’s the other thing that I needed to tell you...I have to fight Darth Vader...I mean, Dad. Whoa, so that vision on Dagobah was right? That’s weird.
<Luke> Because I need to.
<Luke> Because that’s what I have to do.
<Luke> Because I was told to.
<Luke> Because...I’m leaving. Goodbye.
<Leia> But...I really don’t know why.