I really like this one. Plain and simple, thats all I have to say

I love you.
And let me assure you once more that you have nothing to fear.
I can see the green in your eyes, my darling. And I don't resent you for it in the slightest, because I knew these words long before you said them. And I forgave you for them even longer ago--they were left in the past, at a time and place that our friendship was cemented so deeply that I realized you were and would always be the sister I'd be craving for so long. He completes me, yes, but so do you. If a leg of mine was stolen with his abscence, who is to say that your abscence would not take my other one? I could learn to adapt to standing on one leg, dear. But we all know I am a creature that can not exist without standing on her own, and to lose both just might be a blow I could not withstand. I love you, I love you, I love you. Know that, hold on to it, and bear with me, angel. This is just another test. And we've never failed before.
-me

As a sister and a girlfriend I empathise with both sides of this poem. It's beautifully written, and I particularly like the true thought asides in brackets.