Maya and secrets

Maya is really into telling secrets lately.  She leans in, cups her hand around your ear, and whispers something of great import.  This morning at breakfast, she said she wanted to tell me a secret.  Tim was sitting between us, so he said she could tell him, then he could tell me.  She thought about it for a while and decided that we would each get our own secret.  Tim got to go first.  Then she came around the table to me.

Maya: [whispering in my ear] It's actually going to be the same secret.

Me: OK.  What is it?

Maya: [whispering in my ear] I'm not telling.

I have no idea what she told Tim.