A friend and I are both that way so we end up in "real" arguments

I don't think your husband understands your feelings and so probably does not want to or see any reason to change his own behavior. He probably has a desire/need to say what he does, to try and get you to feel as he feels, just as you have a desire/need for him to stop.

Instead of telling him what he is doing "wrong" I would tell him how it affects you. "Dear, when you continue with points after I no longer want to play, I feel badgered by you." Something like that. Then, just remind him the next time he does it with a, "I no longer want to play."