In a Gay relationship where my boyfriend and I have split, do I have a case for Palimony

My boyfriend I discovered has lied to me throughout the entire brevity of our relationship. He has a wife and two children , he has slept with over 27 other men some of whom were hookers. He was caught in a scandals a few years ago which caused him to loose his title as mayor and to be fired from his job ... All of this I found out almost 2 years into our relationship. When we met we agreed to be monogamist and he agreed to financially support me ... We have rented an apartment we have a dog and built what I thought was a life together until I discovered all this scandal. He has decided to pick up and run off and leave me high and dry with a 6,000 per month apartment bill vet ills dog food and care bills ... Telephone cable ect. And said if I try to sue him for palimony he will sue me for blackmail. He has threatened me not paid me for the work I did to advance his business as was our deal and has chosen to run off.... What can I do?