Lois' main interests in various late 1950s and 1960s stories became vying with her rival Lana Lang for Superman's affections, attempting to prove Clark Kent and Superman were one and the same or otherwise getting Superman into marriage. Superman's rationale for resisting her matrimonial desires was that marrying her would put her in increased danger from his enemies and that she could not keep his secret identity hidden. Regardless, Lois married several times in the Superman stories of this era, including to a Superman impostor from Kandor, the villainous Zak-Kul and a man from the future. All these marriages were either annulled or otherwise forgotten.