Loyalty Quotes in A Dog's Purpose

How we cite our quotes: (Chapter.Paragraph)

Quote #4

I was torn between loyalty to Mother, who had fed me and taught me and taken care of me, and to the pack, which included my worthless brother, Fast. (2.46)

"Torn" seems to be a strong word here, as our narrator has never expressed any sort of loyalty to his mother or to his siblings. Are you surprised when he leaves with her? (On the other hand, it's not like she exactly sticks around after a certain point or anything.)

Quote #5

Spike was unquestionably the leader now, a message he enforced by challenging every single one of us, head-to-head in the yard. (4.34)

Spike is seen as a bully, a villain of sorts among dogs. But how is his technique to gain superiority different from Jakob's? Jakob, of course, eventually finds a dog that will submit to his control, but the dog loves Jakob in a way s/he didn't care for Spike.

Quote #6

I put on an extra burst of speed and leaped through the air, landing on the back of his go-kart and nearly toppling off again. (12.36)

This is a "Race for Your Life, Charlie Brown" moment, when Bailey helps Ethan win a go-kart race. Except Bailey is much more helpful to his owner than Snoopy ever was.