And what's wrong with being unsure, but working toward certainty? If he's with you after three years and there are no problems in the relationship, maybe he wants to make sure he's at a certain place so that he could be the best him for you. I know this sounds crazy, but you know.. there are TWO people involved In the marriage. Because you're sure about you, doesn't mean he's sure about himself. Not everytime a man doesn't want to get married, does it mean that there's an issue with the woman, or that he's unsure of you.