Before we met, you showed me your diary.
I must confess that I am still confused by this sequence of events, as, I imagine, you must be confused by my decision to leave your life so suddenly. I've gone over everything in my head time and time again and I can't shake the feeling that, somehow, everything got mixed up. Though this may seem a flimsy reason to you, it is reason enough for me. I don't understand, so I'm going to leave.