Oh I know that they had a real life feud, yet when the daughter of Joan Crawford wrote the book about her mother "Mommy Dearest" in which she wrote not nice things about Joan. Bette Davis was alive at the time and stood up for Joan.
I couldn't get into the link. I personally think ok they probably disliked each other but I'm sure there were times they were friends. It's the same with Betty White saying that Bea Arthurs disliked her too. Don't believe it was that bad really.