Hopper kissing Kingsley
*Spoiler*
As Hopper's character is dying, he kisses his wife and then proceeds to kiss Kingsley before he finally dies. There was a moment, I thought, where Hopper sort of realizes what he's doing (kissing his colleague and friend) and stops. I don't know what to make of it and what was the director's intent.
For those who have read the book, is it explained why he did that? Or was it just to indicate that Hopper was clearly out of his mind and did not know what he was doing?
His wife later says to Kingsley, "I wonder who he thought I was..".