The surviving Beatles star recently admitted his feelings towards Ono had mellowed over the years after falling out with John Lennon's widow in the late 1960s, when the Fab Four began to experience the problems that would lead to their split in 1970.
He told Rolling Stone, "I thought, 'If John loved her, there's got to be something. He's not stupid'" and added that bandmate George Harrison once advised him to let go of his negative feelings, telling MCCartney, "You don't want stuff like that hanging around in your life".
Ono confesses she is grateful for MCCartney's comments because she has long admired his work.
She tells the Associated Press, "I'm very thankful. I never felt too bad about Paul. He was my husband's partner and they did a great job and all that. They seemed to have a lot of fun, and I respected that."