We end up getting into huge fights over the stupidest subjects. We'll have a normal conversation about a certain subject and if we differ in opinion, he will come back with so many counterpoints that I finally feel like he's trying to get me to agree with him. At that point it feels like he is arguing with me. Last night we were talking about our opinions on NASA. One of us was pro the other was not. We both explained with valid points why we thought the way we did. With a couple of counter points involved. The conversation sort of ended and we continued watching football. Nearly ten minutes later when I'd almost forgotten about the conversation, he continued with ANOTHER reason why he feels the way he does. At that point it's like he can't let it go and needs to persuade me as to why what he thinks is right. And when I call him out on having to have the last word and be right, he says he's not arguing! The exact definition of Argue is "give reasons or cite evidence in support of an idea, action, or theory, typically with the aim of persuading others to share one's view." How can I make him realize that he makes one too many points?