me and my shorty been together now about 9years now, but were not married, but we seems to argue about old pryor things that happen in the past, how much longer do you think it will last.
It will continue forever if you both can't learn to overcome them. You have to stop living in the past. If there was something done back then that hurt you SO BADLY that it's still affecting you, you should probably both part ways. Arguing about things that have already happened never gets you anywhere. If there's a problem, then talk it out between the two of you and come to an agreement. Once you've done so, that topic should be overwith and done, you shouldn't keep arguing about the same old things that have happened over and over again.
Arguing about past issues means the past issues were not resolved. IF you want this to work then resolve the past issues. Write down what has not been dealt with and see if they are still problems. If you think they are sit with your partner and discuss them. If they can not be dealt with then both agree never to bring them up again.
If one or both of you is/are obsessive enough then you may argue forever. If you have enough sense of humor you may laught at all the problem of the past.