Why? Because she doesn't actually want you to win this battle.
She is not cruel but in her mind it really boosts her ego to imagine that you will miss her forever and that you will never find any girl who matches her.
She still has this uncontrolled need to be number one in your mind.
When you tell her about these files, you reveal you battle plan and give her the keys to stay in your mind longer.
Remember that this is a battle of psychic energies between you and her.
Keep these secrets to yourself and don't reveal them to her ever or you'll lose your edge in this battle.
To your power!