John Lennon and Yoko Ono met in 1966 and started an affair. The relationship drew a great deal of negative attention, and many fans of The Beatles unfairly blamed Ono for the band breaking up. According to Lennon, he already had one foot out the door with the band when he met Ono. He explained that after meeting her, though, he had very little in The Beatles.
In 1966, Lennon visited an art gallery and saw Ono’s work. He hadn’t known much about her ahead of this.
“I was looking around the gallery and I saw this ladder and climbed up and got a look in this spyglass on the top of the ladder — you feel like a fool — and it just said, yes,” he told Playboy in 1980. “Now, at the time, all the avant-garde was smash the piano with a hammer and break the sculpture and anti-, anti-, anti-, anti-, anti. It was all boring negative crap, you know. And just that yes made me stay in a gallery full of apples and nails.”
Source: cheatsheet.com