need help urgent

My marriage with an American got into deep trouble. Im currently in Singpaore,He cheated me and wanted to divorce now. I plan to go back to PA,USA. But I dont know how to get things settled. I have no relatives or friends in PA, and because of him, i lost my job in singapore, I will get my master degree in singaore next month. Is there anybody can provide any legal info? My story is a long sad one I have no time to share today. But I really need your help. I dont think I can afford a attorney.Before we sign the divorce paper, what i can do to protect my rights?

Thank you so much dear friends

my email is [e-mail]

Aiping