When you have to start proving yourself right to your boyfriend on a regular basis, you’ve got bigger problems than who’s right and who’s wrong. There’s something else going on beneath the number of times you rub his back or the last time you did and who remembers correctly. So keeping a journal to prove yourself right and him wrong is a bad idea. It’s like putting a band aid on a cut on your arm, but ignoring the broken bone.
It sounds like your boyfriend, overall, is telling you you’ve changed and not for the good. His comments indicate he misses [i]the old you[/i] — whether or not he’s right about there ever being an old you. Or else, he’s missing something that you never were. Something in his life is off, and he’s trying to tell you that something you’re doing is wrong. He may or may not be right.
Try and talk to him without getting into a defensive or offensive position — or putting him in either of those places, too. I know you want to defend yourself against what you hear are criticisms, but try and listen for his bigger message. It sounds like you have to communicate more deeply with each other to get to the bottom of whatever he’s really feeling or wanting.
I hope that helps.