Holy crap, this post. Kirk now knows how important Spock is to him, and he to Spock. Then Khan happens, Dreadnaught is falling, and Kirk REMEMBERS the radiation core, and he can't let that happen again, so he goes himself, and it doesn't matter that he is dying, Kirk dies with a smile on his face because he saved Spock. (Paraphrased from original post because #eff all the effing hashtags)