Changing a relationship is challenging. It’s not impossible, and understanding what the process looks and feels like will increase your chances of success – there’s two parts, and one of them is something many people don’t expect or understand.

Initially, of course, there’s the challenge of changing yourself. You need to know what’s wrong, to believe you can change, to figure out what to do differently, and then actually make the changes. Sure, I covered it in a sentence, but don’t ...