I don't even think Kakela is really clear herself on what's her truth and what's her lie.
But neither do I think Tre's shell was cracked open more than a pinch. And I don't think that crack revealed anything but that the asshole exterior concealed a tender heart of total asshole.
At least I found Kakela complex and sort of fun to loathe, whereas I found the title character completely annoying, unsympathetic and dreadful throughout.
I liked the horse, though.
(But it all went downhill from Gabe's nude scene in the first two minutes, heheh
)