The Strictly pair were married for three years before eventually it quits in 2018.
"I’m learning not to get my hopes up too much," the former Strictly professional says in our new interview series, 2020: The Year That Wasn't.
The former pro dancer partnered the EastEnders star when she appeared on a one-off Children In Need special of Strictly last year.
The Radio 1 presenter said the former Strictly pro "knows what he's talking about" after he called out the judges' "harsh" scoring.
‘They Slaughtered Her’: Former Strictly Pro Kevin Clifton Weighs In On Judges’ ‘Harsh’ Scoring Of Clara Amfo
He also revealed who he thinks is going to win this year's series.
The former home secretary and partner Anton DuBeke were the first couple to be voted off the BBC show.
"I thought, I’ve just made this big announcement. I don’t want to look like an idiot," the pro dancer said.
The new series of the BBC ballroom show will be unlike any other before it.
Kevin Clifton Speaks Out On False Rumours: 'It's Horrible When You Feel As If The Press Are Going For You'
The former Strictly Come Dancing pro's relationship with Stacey Dooley has been the subject of many news stories.
The Strictly Come Dancing professionals announced their split in 2018, after three years of marriage.