You may be done with an argument, dear Aquarius, but the one who is challenging you is not happy with your refusal to keep fighting. That does not mean you have to keep going. It also doesn't mean you should find a way to prove you are right. You have spoken the truth, and the truth will become obvious to everyone eventually - even if it takes a while. In the meantime, try to be satisfied that you stated your case, and bask in the certainty that you will be validated soon.