Your significant other should be your best friend. You should always be sensitive to a man's ego, this is a fact of life. And you should never try to hurt a women's emotions. Men's egos are huge and the bruised ego takes a long time to heal. It takes a negative toll on any relationship. It can be very tricky dealing with the male ego. Never criticize, instead phrase your criticism in a positive perspective, or even in a humorous way. Always give them the control.
Men & Women have insecurities, remember to reassure him, and don't hesitate to reciprocate when he expresses his feelings toward you.