Cynthia Lennon was not a fan of George Harrison when he was 15 and she was 20. He was the last person she wanted to visit her in the hospital. When George Harrison started playing music with John Lennon, he was 15 years old. Cynthia Lennon (Powell at the time), John’s then-girlfriend, was about 20. She thought of him as an annoying kid brother. When she got her appendix removed, he was the last person she wanted to see in her hospital room. According to the Beatles biography The Love You Make by Peter Brown and Steven Gaines, George was “the friend of John’s that Cynthia liked the least.” He had a way of annoying her. A big part of that was the amount of attention he gave to John.
Source: Kelsey Goeres/cheatsheet.com