These things happen, people don't always agree. You didn't really say what the disagreement was about, and you don't have to say it if you don't want to, but recently I've been trying to get along and be cordial and happy with people regardless of our differences in opinions. As long as they are not causing harm to me or someone else. Maybe this could be relevant in some way for you @lerkfrend
RE: A Tale of Two Egos (and a god named Ego)