"There's never been a time where my children have seen me weeping. We're alright. We have a brilliant support network around us," said the actress, whose seven year marriage to Tom came to an end in 2013.
"I do feel like, once you get over everything, we are not that much worse off. (He is) still their dad and they still have a relationship.
"Kids adapt. I have a colourful life," Tamzin continued. "It hasn't gone the way I would have envisaged…. It doesn't mean your kids aren't happy."
The 44-year-old New Tricks actress also confirmed she is looking for love – one month after she was spotted enjoying a dinner date with a mystery suitor.
"There have been some nice people," she said. "The attention has been lovely. I never lost faith and I hope I never become anti-men. It's been quite liberating to be a single woman in your 40s because I feel quite independent.
"It's been a really good time; I've got my confidence back and I feel desirable again. It's taken a while to get there, it's taken a while to let people in but I'm certainly ready and open and up for it."