Thanks in advance for your help with my new tax issue. I am not sure how to file in order to gain the most tax dollars back. Also, I am wondering if I am eligible for any deductions/dependents? Here is my situation:

Since June of 2009 I (a US citizen) have been married to a non-citizen/non-resident. We have not permanently lived together at all in 2009. We have both been working in different countries (me - the US, him - the caribbean). I own a home myself and have paid for everything in terms of keeping up the home. I have also paid for his medical bills and other bills. There are no kids involved. I do not want to file jointly since he would then be subjected to paying our taxes. Is my only option to file married filing single? Can I claim him as a dependent in any way? Is there anything I am missing?

Thank you!