Now The Chase star says she's back with Labbett with the couple trying to save their relationship.
"Like a lot of relationships, you go through a rough patch. We're working our way through it," he said.
"A newspaper offered us a sum of money and we kindly denied. We're quite private, there are no pictures of our son online and I'm not going to name him until he's old enough to make the decision."
Labbett wore his wedding ring during his talk show interview on Loose Women.
At the time of their split, Katie said: "Mark and I had been talking about separating for some time — we have been drifting for a while.
"He works away a lot and that's been hard. A lot of people think it's the age difference but we don't see that as the factor.
"It's more that we don't have mutual friends, and our lives are just very different.
"I met Scott by accident, on a night out, and we just clicked. It wasn't intentional, it just happened. But Mark always knew — straight from the off I was honest."