you should read carefully (the become king objective is strictly related to a dejure-kingdom (where you capital is located in?)). but reaction if you create a titular-kingdom-title should not been correct (3 years no-ambition-flag)
Wouldn't it be better if it would also count when you make a titular title... a king is a king.
Also, wouldn't it be nic eif female rulers are able to get a lover through the 'obtain debutane' decision. Female rulers can do the decision but it will call up a female character (according to the tooltip).