Former NYPD Commissioner Bernard Kerik conducted two extramarital affairs simultaneously, using a secret Battery Park City apartment for the passionate liaisons, the Daily News has learned. The first relationship, spanning nearly a decade, was with city Correction Officer Jeanette Pinero; the second, and more startling, was with famed publishing titan Judith Regan. His affair with Regan, the stunningly attractive head of her own book publishing company, lasted for almost a year. Dramatically, each woman learned of the existence of the other after Pinero discovered a love note left by Regan in the apartment. The revelations about Kerik's private life come...