And I think he does love him. He just thinks he's rather a cantankerous tight wad, which I believe is true.
In Keith's autobiography, he says the following regarding the Berry/Johnson musical partnership, giving his own slant on the songwriting credit controversy.
"..we realized that everything Chuck wrote was in E-flat or C-sharp - piano keys! Not guitar keys. That was a dead giveaway. These are not great keys for guitar. Obviously most of these songs started out on piano and Chuck joined in, playing on the barre with his huge hands stretched across the strings. I got the sense that he followed Johnny Johnson's left hand!"