The presenter wed her fiancé of six years Graham Quinn in a secret ceremony in Norwich back in October.
Klass told The Sun that she was taken aback by how their relationship had strengthened since tying the knot, adding that she felt "content" to spend the rest of her life a married woman.
"Marriage changes everything," she said. "I feel like we're this really tight unit. It's just the two of us against the world and we can take on anything together. We've had a lot of ups and downs, and I mean serious stuff, but we've got through it all.
"I take marriage really seriously. To me, as a business woman, I see it as a contract that can't be broken. We didn't enter it lightly, we did it because we want to spend the rest of our lives together. I feel very content with my life right now. I feel very lucky."
Klass previously blasted celebrities who sell the rights to their wedding, claiming that she proved with her low-key day that privacy can be achieved if wanted.
"I love the excuses people give for selling their weddings," she said. "'People are going to get the photos anyway'. Well, they didn't.
"[They say] 'If you are going to pay all that money out, you might as well get someone to pay it for you'. That actually makes it work and I don't want to work on my wedding day."