Getting security deposit from ex?

[aYearlyNylonHat]

Oct 1, 2005 I rented house with my fiancé. We paid $1000 security deposit, and both of our names went on the lease. We renewed the 2 year lease in 2007, and 2009. On Oct `1, 2011, Ex (now) renewed the lease without me present. I had no plans to move out at the time, however I did end up leaving on May 5, 2012. Ex stayed until the end of the lease term. On Sep 29, 2012 I helped ex clean for move=out inspection. It was in good shape. I was not present at the inspection. Ex informed me after the inspection that not one cent of the security deposit would be returned. I had called the landlord to confirm Ex's story but the landlord absolutely refused to speak to me about it. He said because my name was not on the lease I had no right to any information regarding the security deposit. Do I have any rights to my half of the security deposit? Thanks for any advice.