The “Murder on the Dancefloor” singer came fourth in the BBC series, and was partnered up with professional dancer Brendan Cole.
She said: “For all the glitter and sequins and stagecraft it taught me, I had to pay quite a heavy price, and Richard, too… Richard started to struggle with my involvement from the launch show onwards.”
The singer added: “It was so hard for him that I can remember wondering if they’d ever had a contestant walk away from the show before they’d even danced their first dance.
“The physical closeness was something I struggled with throughout, but, by the end, a lot of things I had thought were odd – like the ‘couples’ holding hands or gripping on to each other for the results show – I was used to and it seemed as if, by doing those things, I had crossed another Strictly hurdle.”
According to Ellis-Bextor, Jones became “unusually insistent” on knowing where she was “all the time”. “If I didn’t reply to a text, he’d spiral,” she added.
The artist said: “We would argue when I was home about how distracted I was and about whether I’d get through to the next week. He just felt as if I might slip into a new life that left our family behind.”
Ellis-Bextor said that Jones had counselling while she was on Strictly. The couple now have five children together.
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In her memoir, Ellis-Bextor also revealed that she lost her virginity aged 17 when she was raped by an older musician.
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