Be it her. Be it him. Many times, we just say we do.
Then if pushed to describe why? That's the part seem hard to do. When it's the one we standing before we love.
Describe why? Why you love them deeply? Describe their importance to you. Yes, describe why?
Why they make you feel vital to them? Why you go out of your way to do for them the things you do? And in return they might describe why they truly loves you?
Say it. Write it. Describe it too. Love importance has made many acts like a fool