Sam - who ultimately signed a prenup before tying the knot - said on the 'Trading Secrets' podcast: "I wanted her to have a prenup. "I wanted to make sure she's protected, because ...

The 38-year-old star decided to stop speaking to her dad, Dennis Cavallari, after he "crossed the boundary" with her kids, and Kristin now considers the move to be "the best decision [she's] ever made ...