I’m of two minds about the ending of this episode. On the one hand, Spock just altering Kirk’s memories without his consent is, to say the least, appalling. It’s a horrid violation, a despicable act, for all that it comes from a place of love (the very love McCoy had just accused him of not being able to feel), as he simply wishes to stop his friend’s pain. But it’s a horrible, horrible thing to do.
On the other hand, I kinda wish Spock had turned, reached through the screen, and given me the same treatment so I wouldn’t have to remember this abomination.