From the text:
Hell, do they ever know it? Nobody says, "You're dying." You have to fool them. They have to fool themselves.
Yes, I made my mistake when I told you the truth about that thing with Skipper. Never should have confessed it, a fatal error, tellin' you about that thing with Skipper.
"And I did, I did so much, I did love you!—I even loved your hate and your hardness, Big Daddy!
Wouldn't it be funny if that was true…"
Cat on a Hot Tin Roof