How would this passage be different if it had been written in an ironic tone? how would the meaning of the passage
change? how might that affect the theme?

It means the character is not satisfied with his life theme.

Explanation:

Theme of the story would become different because if would lose the sincere type of narration of the boy who is coming of age.

i love cake

and don't hate

i know i'm fat

but what's wrong with that

i cant rap

but im sure ya know that

its just for fun

so quit hatin' son

~courtney

it should discride this whale so it shouldnt be that hard