John was closest of all to Paul; their relationship was very complex.

I knew the man up until our divorce - after that I didn't know the man, but it didn't stop me caring about him and worrying because of the complete change that I saw in him. He'd lost his sense of humour and he got aggressive; he wasn't for the world any more, he was just for Yoko. Before that he opened his arms and embraced the world with his wit and humour - afterwards he was a completely different kind of person.

Yoko had 10 years and I had 10 years and I would rather have had the 10 years I had than the ones she did. I had the raw talent and the raw human being, before the sycophants arrived.

When John was with me, it was total commitment. Whatever he did outside our relationship didn't seem very important. We were together such a lot of the time that whatever other affairs he had once we met couldn't have amounted to much because I was with him most of the time. He kept me in Liverpool as late as I dared stay.

Noel [Charles, husband] and I love cooking. He does his cooking and I do mine. I'm the traditional English cook, with a twist now and then. Because I was married to an Italian, I'm also pretty good at Italian food. Noel, he can cook anything, so can Julian.

We were both sort of bowled over by the fact that we were married. It wasn't a question of 'Have we done the right thing?' It was all perfectly natural that we should be together. But John didn't get a real chance to be first a real husband or later, a real father. Once he got on the Beatles bangwagon he couldn't get off, even if he wanted to.

John was an extraordinary man. Our relationship has shaped much of my life. I have always loved him and never stopped loving him. That’s why I want to tell the real story of the real John – the infuriating, lovable, sometimes cruel, funny, talented and needy man who made such an impact on the world. John believed in the truth and he would want nothing less.