The BBC star later took to Twitter to confirm she had split from Sam, but dismissed some of the details Sam said in a candid interview.
Earlier this year, the television star gushed over her relationship with the professional dancer in a rare interview.
She told The Guardian: “Kev and I have agreed not to go into too much detail about our private lives because you can’t really indulge that and then ask for privacy.
“That’s why we’ve turned down interviews that have offered us tens of thousands of pounds.
“What I am happy to say is Kev’s amazing, I’m happy, life happens, I’ve got an amazing career and I’m very lucky.”
Strictly Come Dancing continues this Saturday at 7.10pm on BBC One.