The singer and TV personality, who joined the show last year (19), insists she and Sharon often disagree, but talk of a rift is false gossip.
"Don't believe anything you read," she said during an appearance on "Watch What Happens Live". "Sharon and I are great friends. Everybody who sits at that table is a very strong woman. She'll say things and I'll go, 'Uh, no'. But that doesn't mean we don't like each other."
She adds, "We're very different and yet similar in ways. We're both strong women, I've been in this business, this is my sixth decade. I've been around."
Speculation that the two were at odds began last month when Marie called the coronavirus, "intriguing," and Sharon responded that it was actually sad.
When she realised she used the wrong word to describe the pandemic she insisted, "I'm just like you, Sharon," prompting the Brit to snap back, "You're nothing like me!"
According to the singer, Ozzy Osbourne's wife doesn't owe her an apology, despite making her look foolish on TV: "No, she doesn't owe me anything," Marie smiled.