Starting An Unnecessary Argument

Lately I started an unnecessary argument with someone that I really care. Frankly, it is all due to my ego. This incident has affected my daily life. I could not let it go. Not that I am angry at that person but I am angry at myself. If I have just focused on living my life, it would not have happened. There is no need to get involve with things that has nothing to do with our life. Right or wrong, it is still another person's life. Just focus on living our best-self and that's all we can do.