i can not love you more
than i have loved you
for i have loved you long
and held your love so dearly
in my heart of hearts but now
my eyes have opened
to find my heart in mourning

and when the first bird
sings outside my bedroom window
he sings a sorrowful song
for you have found me lacking
though i can not understand
the how and why of it
and yet my love for you
was gentle and long suffering

Faith Elizabeth Brigham

http://www.poemhunter.com/poem/i-can-not-love-you-more/