Why do You do This to Me?

Why do you do this to me?
why do you tell me that you love me,
that your sorry,
yet you do nothing to change
what your sorry about?

why do you do this to me?
call me and talk to me and fill my
head with all this bull s**t,
tell me all these lies about how
you'd do anything for me...

why do you do this to me?
always get me to fall back in love
with you when i know in my heart
that I don't deserve a worthless
piece of s**t like you