Keep me.....or....lose me......

Am i just dreaming
or is this really true
we're finally together
but why is she still with you
do you plan on keeping
both her and i
do you think id fall again
for more of your lies?
you cant keep us both
so i would like to know
just which one of us
are you willing to let go
u can call me selfish
for wanting u all to myself
but i shudnt have to share u
to anybody else
and if you decide to pick her
choose her over me
i hope that u will both
live ur life happily
i wont bother u anymore
i'll say my last goodbye
slowly...i will disappear
forever in your life...