What does it mean if a girl won't show you her diary?

That means that her diary is personal, and most people's diaries are. It doesn't necessarly mean there is something in there that's about you. Diaries and journals are private. That girl probably has her most personal thoughts and feelings in there. Why would she let you read it? I think all it means is that she wants to keep some things to herself. I couldn't agree less. A girl has her diary. IT IS HERS. Sorry, but no one should read this. Do not be surpirsed isf she does not tell you, but be glad that she has special feeling. Besides, at leats for me, when I write in my diary, I don't mean some things I wrote before. ***K***