Pamela said: "What he wants to do is take it easy, he wants to fish on his dock in Florida, and enjoy the sunshine, watch television and drink tea and eat biscuits, that's what he wants to do."
After watching tributes from a number of stars - including Russell Brand, Sir Elton John, Sir Lenny Henry, Dustin Hoffman, Sir Paul McCartney and Sheridan Smith who has named her baby son after Billy - he said: "I'm very touched. But remember I'm happy where I am, and it's because of you and what you made my life. I've got no complaints at all."
Billy previously revealed that he believes quitting comedy is "the right thing to do".
He said: "Since the Parkinson's I'm still the same in many ways, but I don't think as sharply as I need to to be a stand-up, I've done 50 years and that's plenty. Quitting is the right thing to do.
"I achieved everything I wanted, played everywhere I wanted to… I did it all."