am i on dead end?

My mother used to tell me my name was of Muslim origin although I'm a Catholic. Her bestfriend who is a Muslim named me at birth. bearing this in mind I searched for the religion at internet sites and got interested in converting and embracing the faith this year. In 2005 I was civily married. In 2009 my husband ceased giving support to our kids, blocked me of networking sites and never communicated with me.During our time together he physically abused me, hitting me and my kids, almost killed us because of his temper. This gave me insecurities as a woman. I heard he is with someone else now in OMAN. I would like to have the freedom to get my Maiden Family name back and the freedom to remarry in the future. I've read that Islam faith give Women the right to keep their maiden them even if they are married. Can I file a divorce under Sharia Law if the marriage union is not of Muslim rites I am a Filipina residing in the Philippies Marraiage also took place in the Philippines. There's no annulment grounds for our marriage since battery and absence is not a valid ground for annulment. I alsio cannot proclaim his death as he is in constant communication with my kids on FB. He just doesn't want to communicate with me anymore. I don't want to live misserable because of this contract which is totally useless. I hope I will be able to get a light into this INSHAALLAH

No! you can't file for a divorce under Shariah law if you're not really a Muslim, they will require an identification proving your Muslim rights! File for an abandonment as a ground for an annulment it will work for you!