Well, I was involved with this guy who honestly never thought anything he did was wrong, even when he hurt everyone around him. It actually got to the point where he would “edit” his memory, that is to say, he would remember something that would make him look good and make me look bad when in fact it was the other way around. He wasn’t stubborn, necessarily, he just didn’t understand why people never saw things from his point of view (but women are never attracted to me, that’s why I went after your best friend while I was sleeping with you…).
My boyfriend and I are similar to @cheebdragon and her boyfriend. How do we deal with this? We make small adjustments even if we think it’s silly to do so. For example, now he calls my house phone if I’m at home because I get little service in my house. Does he think it’s silly? Yes he does, but he does it anyway. By the same token, we never spend a night at his apartment anymore because he shares a room with a roommate. I don’t particularly like this, but I do it anyway.