There is a sentence written in nearly every journalling app on the market, and it almost always begins with the same five words: that sounds really difficult, and. What follows is sympathetic, articulate, and useless. It is the sound of an audience clapping politely while you describe, for the fourth time, the same fight in the same kitchen.
The trouble is not that the sympathy is wrong. The trouble is that sympathy is a bandage applied to a system. The dynamic between two people is a circuit; if you only examine one half of it, you will mistake every recurring fault for an unlucky storm. You will leave one chapter, enter another, and find yourself somehow rewriting the same argument in different handwriting.
Mirror was built around one stubborn premise: a journal is more honest when it can hold both ends of a conversation at once. Not as a courtroom, there is no judge, but as a room with two chairs and a fair-minded reader who can see what neither of you can see while you are sitting in them.