Dan: But how can I guarantee that she's not just going to screw it up?
Serena: Because I won't let her. She may not know this world, but I do. And I will protect your story and you.
Gossip Girl: Careful, S.
Dan: I have your word?
Serena: You have my word.
Gossip Girl: Everybody knows the road to hell is paved with good intentions. And shady bosses.

Dan: Whatever Jane sent you here to say, why don't you just say it.
Serena: Well we both think that you should waive your right to write the script.
Dan: Why would I do that?
Serena: Because if you write it your project will be stuck in development hell.

Blair: Dressing me for my wedding day means attending to my every need, no matter how big or small. Adjust for reception! Cinch that train! Penelope! She has to pee!
Dorota: Where secret wedding location?!
Penelope: We don't know!
Dorota: Who designed Miss Blair dress?!
Jessica: We can't tell you that!
Blair: Good one Jessica. Now block that baby bump!

Another thought that occurred to me was to Glee this up. Music. Maybe originals. Or covers.

Jane

Jane: We'd love if you could open up the world of the Upper East Side a little bit more.
Natalie: Rich people are so hard to like. Maybe you could add someone more relatable.
Dan: I thought I did that already.
Serena: I think Dan is referring to his main character, Dylan Hunter. He'll appeal to everyone. He starts off as an innocent from Brooklyn.
Jane: Who quotes Hawthorne and screens Fellini films? I don't think so.

Serena: So Mr. Screenwriter, are you ready for your first development meeting?
Dan: I think so. As long as you guys don't want to change the ending. Or the beginning. Or all the stuff in the middle.

Dr. Barnes: You have to face that you didn't let Blair go, you lost her. To someone else.
Chuck: You don't know what I did. But yes, maybe there is something I need to do if I'm ever going to move on. I don't want to lie to you, I don't want to lie to myself. {he retrieves the Harry Winston engagement ring} If I've really let Blair go, I don't need this anymore.
Dr. Barnes: It's beautiful.
Chuck: I bought it to give to her. I've been keeping hold of it ever since. When really what I should do is just return it.

Looks like Louis is about to make Young Bass' road to recovery a very bumpy ride. Better buckle up, Chuck.

Dr. Barnes: What's this?
Louis: The rest of what I owe you. I told you it'd be worth your while. Now you can settle all of your father's debts.
Dr. Barnes: What do you want me to do?
Louis: Just make sure my fiancée will never ever fall for him again.
Dr. Barnes: Louis, that's up to Blair.
Louis: No. It's up to you. To turn Chuck back into the monster he was for the first twenty years of his life. He's time bomb. Find his fuse and light it.

Blair: Where's Nelly Yuki?
Penelope: Yale. Where she got in and you didn't. Plus she hates you, remember?

As faithful minions through the years, you've each earned a chance to be immortalized as a bridesmaid in my royal wedding. But legally I must warn you not everyone will survive the tryouts.

Blair

Don't worry, my love. Nobody will get hurt. Not badly.

Blair

Gossip Girl Quotes

Even Blair Waldorf can not bend DNA to her will.

Dan

Hazel: Do you know what you're doing, Little J?
Jenny: I'm not Little J anymore.