I FOUND OUT

I know what you did,
And that was not right;
you know what you hid,
now it's my turn to fight.

better be prepared;
you have something coming;
'cause you knew that i cared
while you were there pretending.

what kind of monster are you?
toying with my heart.
should have listened to my instincts
and not trusted you from the start.

why did i say i was sorry?
that was my mistake.
i'm happy that i dumped you;
an action i'll never retake.