I don't know what changed

Over the past couple of days I have been reading some of the old blog posts and journals that I wrote while my ex and I were still together. I just keep looking over them, wondering what changed. I keep wondering why things can't just go back to the way they were.... I love her so much. I love her with everything that I am, and I just can't make it go away. I keep wondering if she still loves me, and still thinks about me, and I just can't stand it. I can't stand the way things have turned out. I can't stand that I'm not with her.