I am uncomfortable with the emphasis being placed on trying to figure out the other’s secrets and shortcomings. I think many young people approach dating as if it is an adversarial contest, with me trying to misrepresent myself in the best way while trying to see through her subterfuge.
Do you really want to marry someone who is not accepting of your true self, your hopes, dreams, aspirations, fears, and failings? Do you think the person you are dating wants to?
If you form a relationship with the person, you will find out most everything you need to know.