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Seann Walsh's ex Rebecca Humphries has opened about the mental health impact of their very public split during his appearance on Strictly Come Dancing.
During the 2018 series of the BBC show the comedian was photographed kissing his married dance partner Katya Jones.
Now his former girlfriend has revealed how she was left suffering from PTSD-like symptoms in the aftermath of discovering that he had been unfaithful.
The 35-year-old actress – who played Margaret Thatcher's daughter Carol in The Crown – told The Sunday Times' Style magazine that she experienced nightmares and went on to have therapy.
Following what Humphries describes as the “bin fire of all break-ups”, she moved out of the west London home she shared with Walsh and in with friends to lay low for a while.
The couple dated for five years after meeting through work, and she has detailed in a new memoir Why Did You Stay? how their relationship was at times toxic.
She said: "If you’d met me [towards the end of the relationship] you wouldn’t recognise me now. I’m a completely different person.
"Anyone who has ever been in a relationship like that will know how much it drains, how tiring it is.”
Humphries adds: "When that happens over years you start to self-identify as crazy and unhinged in a way that no longer feels glamorous and passionate.
"It feels like you’re deteriorating and that you’re very lucky that someone loves you despite that.”
The actress – who has recently appeared in Amazon Prime series Ten Percent – shared that when she had challenged Walsh in the past about being unfaithful, he had branded her "psycho/nuts/mental”.
Of the "Strictly curse", the actress noted that it "puts an onus on something outside of these very human people’s control".
Watch: Celebrities reveal their mental health struggles