What do you think of this goodbye letter kind of thing :(?

When I look at you, the sun comes out and the rain dries up. When I touch you, the feel of your soft, silky smooth hair surrounds me. Thinking about it, I love you. To sit on your back is like floating in the clouds and being whisked away to a better place where all there is, is good. But now we can’t go to that place and I feel your pain every time I look in your eyes. The way you hold yourself, low, depressed, redundant. And the way you stumble, even on the flat and you long to play and gallop and fly but you can’t. You long to leap and soar and spin. But you can’t. That’s why I can’t put you through this any longer. It breaks my heart to write this and to make this decision but it has to be done. I’m sorry. I just want you to know I love you so much. You have been there for me when others weren’t and we stuck together through the hardest of times when I thought we wouldn’t make it through. But this time, I’m asking for one too many miracles. We can’t pull through this and our world is coming crashing down. Every day another piece falls and implodes and bit by bit I can feel the end coming. But how long is there left? Should I wait for it to be too near, when you aren’t happy? Or should it happen now before it’s too late and it all ends slowly and painfully? I don’t know. I guess for you the best is the latter but I don’t know whether I can. They said the next Wednesday, 7 days away. Too soon. But when? Whenever it happens it’s not going to be any easier. But I will promise you that I will stick by you until the very last second and I will be there to sooth and to stroke you and to whisper in your ear and tell you I love you. I’m going to miss you. The most beautiful creature I ever saw. But it’s for the best, so goodbye for now. I will see you in another life time in a better place.