Just one secret

Its one secret
people think secrets are easy to keep
but they don't know
the real burdon they give
it is a shame
everytime you think of it
you feel a needle
inside your heart
that they both left
that one night
that it was your fault
the tree came from nowhere
but it was your fault
that they were fighting
two parents fighting
in just one crash
they say that you're lucky
that you made it out alive
but they don't know the secret
that i hide