Via Harper's Bazaar:
TS: For me, one of the most heartbreaking moments in the book is when, years later, you and Eric get married, and George and his new wife, Olivia, come to the wedding party, Paul comes, Ringo comes, but John couldn’t go. He said later that he would have loved to come. That night there was a huge jam session, and had he been there it would have been the last time the Beatles played together.
PB: Can you imagine? I was heartbroken.