Chaos Walking/Heartwarming

At the start of the first book, Todd hates his dog, Manchee. A few hundred pages later, when Todd is reeling from the shock of using the knife to kill, as well as losing Viola to Aaron, he picks up the resolve and comes up with a plan after realizing how loyal his dog has been and how much they've been through together.

I rub the ears of my dog, my stupid goddam ruddy great dog that I never wanted but who hung around anyway and who followed me thru the swamp and who bit Aaron when he was trying to choke me and who found Viola when she was lost and who's licking my hand with his little pink tongue and whose eye is still mostly squinted shut from where Mr. Prentiss Jr. kicked him and whose tail is way way shorter from when Matthew Lyle cut it off when my dog -- my dog - went after a man with a machete to save me and who's right there when I need pulling back from the darkness I fall into and who tells me who I am whenever I forget.

Whenever a character refers to someone they love as their 'one in particular'.
When Todd discovers that he can understand Viola's feelings and emotions despite her lack of Noise. Even more affecting because it's when he finally lets her read his mother's diary to him. Can also apply when Davy offers to read it to him as well.

I can read it.
I can read her.
Cuz she’s thinking about how her own parents also came here with hope like my ma. She’s wondering if the hope at the end of our hope is just as false as the one that was at the end of my ma’s. And she's taking the words of my ma and putting them into the mouths of her own ma and pa and hearing them say that they love her and they miss her and they wish her the world. And she’s taking the song of my pa and she’s weaving it into everything else till it becomes a sad thing all her own. And it hurts her, but it’s an okay hurt, but it hurts still, but it’s good, but it hurts.
She hurts.
I know all this.
I know it’s true.
Cuz I can read her.
I can read her Noise even tho she ain’t got none.
I know who she is.
I know Viola Eade.

All the little moments in which Viola and Todd reafirm their trust in each other.