John Lennon's friend worried about him when he and Yoko Ono separated. He said Lennon could hardly take care of himself.

Yoko Ono and John Lennon separated for over a year. Before this, Ono was getting sick of Lennon's presence in her life.

As bandmate Paul McCartney would later note, The Beatles’ John Lennon’s short life was full ... John was just a teenager at the time. “That was another big trauma for me.