Dh and I have been together 16 years and many of our friends have been couples for a similar time. We've seen various couples split along the way, but equally many of our friends seem to be in it for the long haul and are very happy together. One of our couple friends have had quite a lot of stresses, child with learning disabilities, husband working long distance for a few years, money worries, but they have the strongest marriage I've known. Obviously none of us know another couple inside out, but from what you know, what is it about couples you know who seem to have a good partnership?