The sad thing is that John and Paul both had problems and they loved each other and, boy, could they have helped each other! If they had only communicated! It frustrates me to no end, because I was just some chick from New York when I walked into all of that. God, if I’d known what I know now… All I could do was sit there watching them play these games…I know that Paul was desperate to write with John again. And I know John was desperate to write. Desperate. People thought, well, he’s taking care of Sean, he’s a househusband and all that, but he wasn’t happy. He couldn’t write and it drove him crazy. And Paul could have helped him…easily.
— Linda McCartney on Paul and John’s relationship. (via pauliterotica )