Building Loving Relationships

What is it all about? What goes into building good relationships? Scott Peck in "The Road Less Traveled" defined love this way: "The will to extend one's self for the purpose of nurturing one's own or another's spiritual growth." I am not sure what that means, but here are some of the basics necessary for great relationships;

shared goals and values
continued courtship
ability to resolve conflict
openness and honesty
acceptance
good self-image
fun and laughter
dignity and respect
feeling loved and loving
being responsible for our own feelings and behavior

Can you add more? What do you think of this list?