Frost, 51, said that it took her a long time to cope with the breakdown of her marriage to the 43-year-old actor in 2003 and she didn't feel in control, reported Femalefirst.
"I was not a confident, happy person. Eating, sleeping and just living were all tasks that I found very difficult. I didn't feel in control of my life," Frost said.
The actress has been dating businessman Darren Strowger for the past three years but insists she is in no rush to tie the knot again.
"But then I like spending time with him as well. It seems to work perfectly for both of us, for the moment. I don't know how long it will carry on.