“He became bitter and hostile to me over the years and his frequent outbursts of hatred to us all was exhausting.”
Wignall pleaded guilty to one count of coercive and controlling behaviour and stalking before he was due to stand trial.
He was sentenced to three years in prison.
The former couple married in 2001 but the relationship started to deteriorate in 2010.
Following his sentencing, Ruth who is one of the main faces of ITV Wales, later took to Twitter to thank her fans for their support.
In view of her 29,000 followers, she wrote: “I’d just like to say, from the bottom of my heart – thank you. I’m overwhelmed by the love and support.