Will any reality show couple ever join Bachelorette's Trista Rehn and Ryan Sutter on their way to the altar? Apparently joining a growing list of reality relationship failures, Don Mueller, the dad at the center of NBC's just-concluded "Who Wants To Marry Me Dad?" series, says that he "isn't necessarily going to marry" Christena Ferran, the woman that he proposed to in the series finale.

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Mueller tells the Associated Press that while he is "technically" engaged to Ferran, "many obstacles" stand between them -- starting with their current long-distance San Diego-to-Cincinnati relationship. "We're going to do our best to try to move the relationship further, but there are some serious things to talk about and consider," he said. "You get caught up in the moment and you do what's right, but it's an awkward situation."

Two months after the finale was filmed, the 48-year-old Mueller confesses he's yet to meet Ferran's two daughters and that he's tied to the Cincinnati-based map company he founded. On the other hand, the 40-something Ferrarai doesn't want to uproot her teenage daughters from California, where she's active with charities and as a champion Arabian horse rider.

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