Disclaimer: don't own Star Trek, not making money
I've always wondered why, when Spock is dying in Star Trek II, he stays by himself until Kirk comes in…I suppose he didn't need to say anything to McCoy as he had just stuck his soul into him, but he didn't talk to the others, either. Anyway, my attempt at explanation. (Yes, I do get it was for dramatic effect in the movie for when Kirk makes an entrance, but still).
Anyway, first paragraph is Spock's thoughts while huddled in the corner. Second is McCoy's personal log entry after the funeral.
Spock's last thoughts
The dizziness and nausea are not the main reason I am staying to myself, wounded in a corner, huddled against the wall. Even now, after all these years among them, I cannot face their sadness. Even now, at the end, I cannot receive their gratitude. It is no longer that I am ashamed for feeling friendship; it is that I cannot express it. My feeling is most eloquent in my actions alone, and I can leave them knowing they understand, as I have performed that last act.
McCoy's personal log
Whenever I was dying or sick or in trouble Spock communicated his friendship through his hands, or his rescue of me, but it was never spoken. When Jim came into engineering, it was Spock's sense of duty that demanded he stand up, straighten his shirt, inquire about the status of the battle, and explain his actions to his superior officer. "The ship, out of danger?" "Don't grieve, Admiral. It was logical."
But then, in his final moment, Spock verbalized what he never had before…"I have been, and always shall be, your friend."