It's a life-force, a necessary element, a crucial cog in the machinery of who we are. To some degree or another, we all crave romance. Be it heavy or light, you'll be hard-pressed to find a story or movie without at least a hint of romance somewhere. From our earliest childhood stories, we can remember "they lived happily ever after".
Romance warms us, thrills us, takes us beyond the mundane, removes us from the stresses of everyday life. We want it in our own lives, that whimsical feeling of falling in love and beyond, to have a love so deep that we can't imagine life without our significant other. There is a difference, yes, in that first romantic love and the unconditional love we choose to show our spouses. But, it's never something we forget (or shouldn't, anyway), never something we can't rekindle on a great date night.
This is why I write romance. It's like the first bloom of a fireworks show, the first crimson glow of an extraordinary sunrise, like biting into a warm chocolate chip cookie. It's the icing on the cake of life.
Now, where's my hubby? :)