of genetics and what it did to my brain-mouth conection

I rather shush, seem unfazed, because
sometimes I want to show you care,
but I end up being harsh instead

I rather stay here quiet, you'll say
that I never did much for you but I did
I avoid fighting with you
what else could you want?

and yet I can't control my mouth
at times like these, I hear a sound
and then I've spilled, so unaware,
all the secrets left unsaid