Paul McCartney and Yoko Ono have famously not always been on the best terms. Soon after The Beatles broke up, John Lennon even said that he would never forgive McCartney and George Harrison for the way they treated Ono. Several years later, though, Lennon and Ono separated, and he was living apart from her during his Lost Weekend. According to Ono, McCartney helped the couple reunite.
When Ono and Lennon got together, his Beatles bandmates, particularly McCartney and Harrison, were not welcoming to her.
“You can quote Paul, it’s probably in the papers, he said it many times at first he hated Yoko and then he got to like her,” Lennon told Rolling Stone in 1971. “But, it’s too late for me. I’m for Yoko. Why should she take that kind of s*** from those people?”
Source: Emma McKee/cheatsheet.com