The more I know about myself, the better I am to make the choices that are in my best interest. It really does take time to figure out what you really want, especially in relationships. Many of us have been infiltrated with so many crazy ideas and assumptions about marriage and relationships until we are barely able to be lived with by the time we find one.
We come into the relationship with insurmountable expectations. Often expecting to get rather than give. Part of the problem our relationships don't work is that we really think the other person is supposed to meet all our needs. I tell you the more you know about your own needs and the more you are willing to meet your own needs, the better.
God did not intend for anyone to be able to read our minds. He expected us to use our minds, and hearts plus the knowledge we possess of ourselves to meet many of our own needs. No one has to give you anything. If you are lucky enough to find someone willing to be everything you want, you'll soon feel unlucky, when you change your mind, but they can't change how they see you.
When you get into a relationship, do all you can to ask questions that will reveal to you the other person. Allow that person to get to know you. The more you know about you, the more you can share with someone who is willing to share their lives with you. It truly is give and take. You will be happier the more you know.