How would you define a 'happy' marriage in your own words?

I've always associated the word "happy" with "home". So for me, a happy marriage is feeling at ease, feeling safe, protected and comfortable with a man I love. Doesn't matter where we are, home is where my heart is and it's with my partner :) I travel quite a bit for work, so the metaphor of coming home is perfect in my definition of a happy marriage. I always know I have a home and a heart to come back to.