What if we just acknowledged that we have a bad relationship, and we stuck it out, anyway? What if we admitted that we make each other nuts, we fight constantly and hardly ever have sex, but we can't live without each other, so we deal with it? And then we could spend our lives together - in misery, but happy to not be apart.
Happiness is the consequence of personal effort. You must fight for it, strive for it, and insist upon it.