A Secret S.P.Y. Note in the BackPack

An exerpt from a note found in Mason's backpack (Mason / his friend Darius) :
She really is a Dramaqueen
tell her that
No! She will tell that we are doing this!!
let's do it
Why?
we are a spy
Telling her doesn't have anything to do with S.P.Y.!
So!
SO!
She would tell and we wouldn't be able to S.P.Y.
She won't no
I think she said she will the next time we are S.P.Y.i.n.g.!
Why
She hates when we S.P.Y. on her
She won't no
Shouldn't we stop talking about her and start talking about McKennsy?
We are going to spy on McKennsy outside
We are not going outside, so I will teach you a code.
Not this day