John Lennon and Paul McCartney were each other’s favorite audience. That was plainly clear as the besotted Beatles bantered, bickered and obsessed over the 23 years they were friends and rivals.

Yoko Ono – musician, artist, activist and the 92-year-old widow of the late John Lennon – took the brunt of the vitriol when The Beatles broke up in 1970, and details revealed in a new ...