How does Sabrina accidentally let it slip that puck and Sabrina get married?

Sabrina let's it slip after Red asks if Sabrina and Puck are in love. Here is the excerpt:

"What? You don't want to stay?" Puck said.

"Duh!" Sabrina said, spinning on him. "I've wanted to get out of this town since the first day I stepped into it. My mom and dad were supposed to make that happen but of course Everafters have to get in the way."

"Don't duh me!" Puck snapped. "Trying to figure out what you're thinking from one day to the next takes more brains than I have."

"Well, maybe you should stop. I'd hate to burn out that little peanut in your head."

"You wish you were more like me, Grimm. I'm magnificent," Puck said, puffing up his chest.

Sabrina's face twisted in anger. "Magnificently smell, I doubt too many people would list themselves as exceptional when their greatest talent is eating with their feet!"

Daphne laughed but clamped a hand on her mouth when Puck glared at her.

Red watched, bewildered. "Are you two in love or something?"

Daphne lost it and fell to the ground, rolling and laughing beyond control. Perhaps it was Daphne's amusement, or Red's embarrassing question, but before Sabrina could stop herself she blurted out the one thing she promised herself she would never tell--the truth.

"In love? As if! How on earth we end up getting married is beyond me! How could I have held my nose long enough to get through the ceremony? Ugh!"

There was silence unlike anything Sabrina had ever experienced. It felt as if someone had turned the volume knob on the world to the Off position. Her sister's giggling expression was no replaced with shock. Even Red seemed bewildered. Sabrina was sure she was about to hyperventilate. She closed her eyes and quietly prayed for another rip in time--one that would allow her to go back and kick herself in the rear before she opened her dumb trap. All she could do was hope that Puck was as slow as he seemed and that he wouldn't understand what she had said. But his face said otherwise.

"MARRIED?"

"It's nothing," Daphne said, trying to dispel the tension.

Puck's huge insect-like wings popped out of his back and lifted him off the ground. He rose a few feet above them and hovered there, flapping his wings furiously.

"Tell me now!" he shouted.

Sabrina tried to talk but all she could do was stammer.

Daphne stepped in to explain. "Do you remember when Cinderella's husband built the time machine that nearly ate the town? Well, we got pulled into it a couple times and saw the future and--"

"NO!" Puck cried before Daphne could finish.

The little girl nodded. "You two are married in the future!" Daphne confirmed.

Puck's wings were beating so hard and fast he was shaking the air around him. "I'm a little boy. Little boys do not get married."

Sabrina's face was so hot she felt she had somehow taken over the work of the sun. "You grew up."

Puck's face fell. "What would make me do that?"

Daphne pointed to Sabrina.

"I would never do that!" Puck roared.

"You're already doing it," Daphne said. "Haven't you noticed you've gotten taller lately? I heard Granny tell Mr. Canis you were going through puberty."

"What's that?"

Daphne shrugged and looked to Sabrina.

"Oh, now I'm good for definitions?" she fumed. Sabrina had never dreaded explaining a Word more than at that moment. "Puberty is when a child starts to become an adult. You're going to get taller and grow hair on your face and get zits."

"This puberty you speak of--it must be triggered by some kind of disease. You've given me your cooties, dogface!"

"Puck, you're not sick," Sabrina said, trying to calm him down.

Blistering flames shot out of Puck's eyes. "I am the Trickster King. I'm a villain. I am the King of Loafers, the Prince of Low Expectations! The spiritual guide for millions of complainers, criminals, and convicts! Villains do not get married. They do not get zits. You have poisoned me, Sabrina Grimm. This means war!"

"War?" Sabrina repeated.

"Yes. war! And when I'm done you'll wish the Scarlet Hand had gotten to you first!" Puck blasted into the sky like a rocket. He went so fast there was a loud boom and then he was gone.

"That went better than I expected," Daphne said.

The Sisters Grimm - Book Seven - The Everafter War

Excerpt - Pages 109 - 114

Written by Michael Buckley

All rights to Michael Buckley and Amulet Books, New York. I do not own anything.