re: my ex left me again and its tearing me apart (Please give me some advice/insight)

I lost my job in January when she got caught with a secret phone. After a week of her being silent she came back and apologized. As for my job she use to come there when I got off. She use to drive my car and drop me off and pick me up. Some days when we closed she would come in and sit at my desk. That's when she apparently started plotting and stole some Toradol. That is a prescribed medication (60mg). My job is pretty hush on the details as to what she said but the my employer didn't trust me anymore and that was enough for termination. We had just moved into a place in New Orleans as well. I paid the deposit and she paid the first months rent. All this transpired over a phone. I had an iPhone4s that I had dropped and the screen just blacked out. I asked to use my old 4since she broke it and I was going to use it to communicate with her via iMessage while I was at work. That 4 had her emailed synced to it and that's how I found out that she had another phone on top of the one I was paying for. She was preaching about no secrets and being honest that night. So I got to work and got the iPhone 4 wifi connected and then her email started going crazy loading all her old emails. So I look thru then and I see she has a virgin mobile phone and she had been hiding it from me. So I call her secret phone from my work number she answered after I called for the 5th time she was dumbstruck. I told her then that after all we talked about yesterday this is what you do. Keep secrets. I said this is a major trust violation and I said we will talk about it when I got off. Well she knew she got busted so she immediately called my job back and spoke to my supervisor.. I told her how much I disliked her but she took everything I ever said about my boss and used it against me. I pick up the phone at work after I see they are having this long convo and she immediately hangs up after she heard me pick up. I go ask to leave and I go home and she had packed all her clothes up and had left.....