Respect. But not the way you think. For a good relationship you must respect YOURSELF first. If you know who YOU are, and can live with yourself, by yourself, and not NEED anyone else to survive, then you are ready for a relationship with someone else... and best with another who has also attained that level of understanding. In one sense , all humans need others. They should add to our lives... add to OUR lives... not be them. And, in return for our knowing ourself, we can best give to others... without them zapping all our energy, and without our exhausting them of theirs. Just a thought.