When will you ever

Out of the blue
you were there
one day your with me, the next your not
my heart wants you to stay
my minds saying no!
your here and your there
i want to move on
every time i do you seem to follow me
you don't know how much you really mean to me
sometimes i think i really shouldn't
I'm probably wasting my time
wanting someone who isn't thinking about you
no one loves pain
even when it makes you feel like its worth it
out of the blue you were there..
now how do i get rid of you?
how can i leave the past behind
and move on