The Bachelor

Bob Guiney: 'The Bachelor,' Season 4

Bob Guiney proposed to Estella Gardinier in the finale of the show's fourth season, but they soon broke up amid accusations of his infidelity. Guiney, though, went on to one of the show's highest-profile relationships, with "All My Children ... more" star Rebecca Budig. They married in 2004, only to split six years later.

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(ABC)