Context: Seeing that gif of Jamie and Amy going around inspired this. And I suppose I owe part of it to the various screencaps of Saoirse Ronan and Max Irons making out from The Host trailer.

The Nightmare

She was outside of her body, watching herself. She thought it was herself; the woman she saw before her was a brunette. It was her, she had the same face…

He was standing in front of her, smirking. "I'm leaving you, Cathy," he said. "I'm leaving you for Amy."

"Can't say I'm too broken up about it." She shrugged. "I've been seeing someone else, anyway."

What was wrong with her? She shouldn't be saying that. She should be on her knees, begging him to take her back, trying to keep him here.

Amy materialized, wrapping her arms around his neck. "Glad you're taking it well." She watched in disgust as he turned to kiss her.

And then the two weren't there anymore. It was just her other self now, in the arms of someone else.

"Told you I was with someone else," she said, winking and crushing her lips against the man's.

She tried to move, pull her away, punch the man in the face. Her feet were rooted where she stood.

"Stop!"

…

BOOM.

"NO!"

Cathy threw the covers off, thunder shaking the flat. The steady drum of rain tapped at the windows as she took a moment to calm herself down.

Where had that even come from? Why would she even think that would happen? She shook her head, turning to look at her husband. Lightning flashed, revealing the empty side of the bed.

Where the fuck is he?

"Jamie?" She rubbed her eyes, trying to wake herself up. "Jamie?"

The bathroom door was open, and the next bolt of lightning told her no one else was there. Still in a state of half-sleep, she stood, making her way to the door.

"Jamie!" She slammed into the wall, falling over. "Jamie, where are you?"

He'd left her. He'd left her and Matt for Amy, and she'd end up with the man in her dream. God, what had she done wrong? Hadn't she made him happy? Why wouldn't he tell her if he wasn't?

"JAMIE!"

The door swung open just as another clap of thunder sounded. She jumped, crying out in terror.

"Cathy, what's wrong?" Jamie knelt beside her. "What are you doing out of bed?"

"I…you…and…left…what…" She gasped, catching her breath. "Amy…you…I…"

"What are you on about?"

BOOM.

Cathy flinched, shrinking away from the window. Jamie lifted her into his arms, laying her back in bed and climbing in himself.

He looked her right in the eye. "What's wrong?"

"You…you weren't here. When I woke up. I…I didn't know where you went."

"Storm woke me up. Matt was upset, and I didn't want to wake you, so I went to sit with him until he fell back asleep. And right after he did, I heard a thump and you screaming…"

Cathy let out a breath, shaking her head. "Bad dream, that's all." She bit her lip, looking at her hands. "I was seeing someone else, and you…you left me…for her." Her words were barely louder than a whisper.

She heard him sigh, long and soft; he tilted her chin upward, finally meeting his gaze.

"You know that would never happen." He pulled her to his chest. "It was just a nightmare…you're safe, alright?"

"I…I worry sometimes, I guess. Silly of me, really."

"No, it's not." He drew her closer as the room was lit with another stroke of lightning. "I think about it. You…leaving." His voice faltered a bit. "I…I try not to, but it happens…"

Cathy pushed the fringe from his forehead. "I won't. I'll always be here." She cupped his face with her hands, bringing his lips to hers.

They pulled away, and Jamie sighed, smiling a bit. "I won't leave, either. I never will."

He laid down, gently pulling her with. She made her head comfortable on his chest, yawning and snuggling closer to his side. They soon fell back asleep, neither one of them letting go.