AI, congrats on a long-term marriage. I'm heading for 24 years with my wife. You are correct that you need good skills to argue in a way that doesn't cause her to call a divorce attorney. It goes deeper than that. Wifey has finally learned that I can't see dust. (No snickering, please...) I have in the past had a form of macular degeneration such that in less than studio-bright lighting, I often cannot see dust and small objects. It was treated in time to prevent further vision loss, but she now knows that she has to be either forgiving or very specific on topics where the question is "Didn't you see the dirt on the floor?" It took a lot of communication to make her realize that. And she has learned to be patient in what she explains to me. If you don't learn how to CONSTRUCTIVELY communicate then you will have strife and you WILL have arguments.
Back to the topic at hand, ...
I tend to win lots of arguments because I don't enter into the argument unless I have some appreciation of the subject matter. But Hell, I'll even happily argue that black is white. (Which, in computer terms, it is. Just white with the intensity turned to 0. White is equal amounts of its component colors at any intensity. So black is just a shade of white.)
On some topics, there is a question as to whether I get abrasive. I sometimes wish that I could avoid that, but there are topics where you can either be abrasive or you can lose the argument - and I don't like losing. Religion is one of those topics, but I try to draw the line between respecting someone's views and letting someone make a false statement as a way to "prove" a point that they in fact have not proved. As a result, I fear that I sometimes do reach the "alienation" stage that Jon mentioned.