Locked in chastity by my ex wife

My ex wife told me last week to lock up. The smallest metal one I had. Wear it to work and take the keys. Hang them on the back of my front office door. I did. She stopped by my office and took my keys. I am still locked and she has told me she'd give me the keys on Sunday. Then it was Monday. Now it'll be Tuesday. At this point I am unsure of two things. 1. Why I followed her instructions. 2. When she really plans to let me out. She knows I love chastity. And I thought it would be fun for a couple of days. I am now on day 6. The longest I have ever gone in my life was a full week. Every day she extends it to the following day.