As someone who is married, I truly do not understand your comment. The exact opposite seems true to me. Honesty and integrity are paramount (at least to me).
Find somebody you respect. Find somebody who is compatible with you. Hope you find someone who thinks and feels the same as you do.
If I struggled on my journey, it was to find a woman who did not want to dominate me or be dominated who was worthy of my respect. I consider myself very lucky. Been married for a long time to an amazing women who is an engineer in heart and soul.
So, nothing about self doubt, deceit for me.
If you are college educated divorce rates plummets. Same for marrying later in life. +the 50% stat is quite weighted by people with multiple divorces. The average HN reader probably has an 80% shot at lifelong marriage.