The cabin is little more than a hole in the ground, overgrown with weeds and strong roots of a towering tree. He has to barge through the small door, the size suited for a big dog. This small act of destruction seems to please him, but only for a second. (Rey finds him cramping into that small space ridiculous, but stays silent).
The air inside is stale and old, and the place is long since abandoned, but it appears safe enough to spend the night in (only snails and apparently non-venomous snakes lurk from beneath the furniture, disturbed by the unexpected visit).
"The place looked bigger when…" He says, looking around with genuine inquisitiveness, but stops.
…I was a child.
"You sleep here", he barks, and rushes past her. He practically pushes her to the side (twice in one day).
"There's enough space", she says means it. Sleeping on a dry floor is far more appealing than sleeping on the cold, damp ground with all the crawling life-forms around.
That's just simple scavenger's rationale. (Crawling life is abundant on Jakku and is unpleasant at best and deadly at worst.)
And she is afraid he might flee again or that he might – freeze to death, get devoured by whatever inhabits the planet? Oh, yes, she has to remind herself of that – she genuinely cares for his well-being. Perhaps it's because she had too much invested in him to let go of him now – again, the scavenger's logics.
He again halts at the door – perhaps he heard her incoherent thoughts. This time, only thing he needs to do is lean a bit (the floor is buried under the level of the forest floor).
He eventually nods.
"You take the bed", he says.
"Take my cape", she says without an afterthought, and offers him the stained rag.
Very farfetched from that Vader-esque monstrosity he wore on Coruscant, and lost during the battle.
She turns away quickly as he removes the long overcoat drenched in water. I have a shirt on, he murmurs to her. Underneath it.
Rey is genuinely relieved.
She had some vacuum-packed toasted bread in her pockets – now it's crumbled, but it's still something. And she shares it with him too.
That expression of disbelief and something almost resembling hope starts to settle in on his face.
"Thank you", he pronounces the words like he's learning to speak a new foreign language.