Whenever we allow ourselves to become "attached" to something/someone we give over some of our rights and allow that which we desire to enslave us (ref "The Way to Love - Anthony de Millo").
So then do we live our lives without any kind of attachment?
I think when you love someone you automatically give something of yourself to them. Not complete control of your life and body but you assume some responsibility for them thereby ceding over some of your rights to them. Love at times means compromise...but it certainly doesn't mean never having to say you are sorry
As for marrage and the bonding of two people for life....I think we are with the people we are ment to be with for as long as we are ment to be together. And even after you go your seperate ways they can still be a large part of your life. Love is extremely complex and expansive. If you let it be...