I love changing. I hate it when people try to box me in to a relationship or in a work context. Any situation where I feel boxed in freaks me out. And I feel the need to reinvent myself or I'll get bored.
The whole point of diaries is that other people find them and read what you've put. I did once take to writing my inner thoughts on the computer at the end of other things I was writing and ended up faxing four pages of hideous stuff to my accountant so I don't do that now.