Love, trust, and of course a firm ultimatum -- the keys to a successful relationship! Or at least according to Nick and Vanessa Lachey. Back in the early 2000s they had a lot of ups and downs when their romance took off during Nick's high-profile divorce from pop star Jessica Simpson. But Vanessa says she made Nick decide once and for all: commit or quit. And now they're putting the method to the test in Netflix's new dating show “The Ultimatum.” Forced commitment really does conquer all, huh?

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