I'm so sorry serene... I am in a very similiar situation as you, and I know how deep it stings.
"Besides all of those feelings I'm really scared. What if I never find a roomate? What if I lse my job, and he gets to keep my job? What is going to happen to me?"
I kind of think being scared is good. It offers change, and change can offer excitement! You won't know until it happens, but good things could follow. As they say, one door closes, another one opens. I consider that to be extremely true.
What if you lose your job? - You could very well get a better one
Never find a roommate? - Never... say never!
What is going to happen to me? - I think you'll find happiness, in all honesty. Once you fully detach from him.. and the lies.. and you can see the light! It will be beautiful