How do I get out of this marraige?

I have been married three times. In my current marraige we don't get along at all. I have lost so much $$ from my last divorce. I can't afford to do that again. I am currently looking for a job. This is the catch...My first husband is back in the picture. Nobody knows about him. I don't want to hurt my current spouse nor do I want him to know about this. So far I have only communicated with my 1st husband on the internet and phone, he is however coming to my area in Nov. for a few days. Can any one help me?