If you think he or she is ‘the One’… protect and nurture that special relationship.
There may be many reasons to declare your commitment to the whole world. Is there a difference between ‘girlfriend’ and ‘wife’? ‘Boyfriend’ and ‘husband’? For most people, there is. You make a deliberate choice to spend your life with this person. And the world takes note, (arguably) offering marital relationships more protection and respect.