patience. realizing that being right leads to little more than being right and that being patient leaves the door open for everything else, the good stuff. It is easier to just get it done than it is to spend an hour on why my partner doesn't care enough to saddle up and pull the load together. And I find shelter, in the form of an alternative activity to working on the hammering out of a relationship all of the time. Anything. Books, swapping out engines, threading a needle, cutting and splitting firewood. Typing at myptsd.
We are all in imperfect relationships, thats the basis for top forty radio. Sometimes the only way to win the tug of war is to just let the rope fall, or better yet just leave it alone.
You have to decide if the relationship is worth it, imperfect as it is. If it is liveable then get on with life and accept that there are battles that just plain don't have a winner. And then, the big trick, remember that decision every time it comes into question. If you decide it isn't worth it, thats the game. If you decide it is worth it, get it tattooed on the inside of your eyelids because it is all too easy to forget and start trying to hammer it out again, see paragraph two.