My wife recognizes she has some issues , as well do I. Its more then anger or different but comes out as anger. Her ex husband beat on her and did some awful things in her life.....her mother was mentally ill as well. We both have things to work thru.
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Read this a long time ago to understand a toxic relationship that I was in. It helped me figure out the motivation behind her behavior and gave me options on how to respond in healthy ways. At one point, I asked her if she would be interested in reading a book about cycles of anger? She replied that she did not have a problem, everyone else was the problem. She never knew that I had alredy read the book, when I asked the question. We soon parted ways.
I can also highly recommend going to counseling to understand and change your situation. Even if she does not, it will help you deal with the underlying issues that add to the tension and how to mitigate it.