She cries at night, even though she sleeps so deeply. The first time it happens he awakes with a start, shaking her awake with concern, only to have her look at him in confusion, saying she hadn't been crying or at least couldn't remember why she would have been.

It took a while, but eventually it becomes routine. Her soft sobs will wake him and he'll find her curled into a tight ball, enclosing herself as much as possible. He'll use his strong arm to force her legs back down away from her body after prying her arms from being locked around them. She'll then begin to shake like a leaf. He'll draw her to him, holding her as close as he can. She'll cling to him, wrapping her arms around him and legs tangle with his own. He stokes her hair away from her tear-soaked face and gently places kiss after kiss on her face. Eventually, she'll calm down and a bit later fall back into a peaceful sleep, snores and all.

In the morning, she doesn't recall any of it and will say with her freckled nose turned up, "Kristoff, are you sure you aren't the one dreaming?"

Yes, he knows for sure he's not dreaming, but he'll only smile and roll his eyes, flicking that up-turned nose.

"Whatever, feisty pants."

He speaks to her sister about it, looking for any sort of explanation. Elsa answers that Anna used to have spells like this after their parents dies, but never so severe. She guesses after everything, nearly freezing to death- at which she would cringe- and the trauma with Hans- at which he would bristle- maybe something in her had just sort of broke.

It makes his heart ache, but also vow that no matter how many sleepless nights he'd have, he would put back that part of her, just as she had put back the heart in him. That's what it meant to love someone.