I love this! Ned's thoughts seemed so authentic and in character. The contrast between saying farewell before the first war and doing so this time was very poignant. It would be so much more difficult now that he's come to love his wife and growing family. That bit about wondering if Sansa would even remember him was so touching and makes me think of Rickon's future, likely not remembering either of his parents very well. I also liked the contrast between Robert and Ned, how a man can be remembered for war feats and enjoy numerous conquests but that is hollow comfort compared to Ned's more fulfilling if less glorified life.

The interaction between Ned and Cat was also great. It's so true to their characters that he would not refuse his duty, and she would not ask him to, even if that is what they would prefer. The references to his battle scars and her beautiful hair were perfect. I love the theme that they fit each other because that's part of what makes them such a good couple. Your writing style is delightful to read, and I think your final line was fantastic with Ned wishing never to become a song.