"I thought, 'If John loved her, there's got to be something. He's not stupid'... What are you going to do? Are you going to hold a grudge you never really had? George (Harrison) would say to me, 'You don't want stuff like that hanging around in your life'." Sir Paul McCartney admits his feelings about Beatles bandmate John Lennon's widow Yoko Ono have mellowed over the years.