Sharp edges

Don't want to feel
this way any more,
like my heart has smashed
all over the floor
it's shards sharp at the edge.
We can talk and be happy
but then we'll say one thing
and everything changes.
I always feel like it's me too,
me that is hurting you
just as I begin
to put myself back together
from the last time,
I stab myself with one of those
sharp edges.