WAY too long, WAY too placating (or is it "supplicating"? I can never remember).
Just my opinion, but I think you need to make it 80% shorter, and get to the point, and speak the truth in love. I'm guessing that there's nothing in that 80% that she doesn't already know, and that you haven't told her before.
What you're shooting for is an "I love you, but I'm no longer willing to live in a sexless marriage. (This) is what I'm willing to do; can you tell me what you are willing to do?"
