MasterChef star Gregg Wallace has spoken about the breakdown of his marriage to wife Heidi.
The couple, who have a 17-year age gap, married in January 2011 and split in March 2012.
Gregg met the former biology teacher on Twitter, after she asked him a question about celery.
The 47-year-old said: "She is tall, beautiful and young. And very bright. I thought we had a long future together. I got that badly wrong!"
Despite the separation, Heidi had continued to work as Gregg's PA and looked after his children Tom,18 and Libby, 15 when he was working in London.
When asked how the marriage ended, he said: "We had a row. And she suddenly said 'I don't want to do this any more'.
He added: "The day after it went public, she tweeted that I was a wonderful man... I love Twitter."
Photo: © Getty