Ignore the moron in the last post...he has issues...i don't think his mother was very nice to him.
As for my advice...I didn't think I would survive on my own...but I knew I couldn't survive mentally being in my marriage anymore either. After having been a stay at home mom for 4 years...i got a job making barely above minimum wage and I left with my 3 kids. It was a struggle, I had to get government assistance (which probably won't help much in your case being you are without children) but my point is...I worked...and I did EXTRA work...Now after 6 months in a slightly-above-crap-hole-status house my kids and I have recently moved into a bigger, better house. I believe that if you REALLY feel it necessary to get out, you can and will find a way...regardless of what it takes. Even if it means sucking it up and living with some idiot relative for a few months so you can save up some money. Or even getting a second job. No kids = more time for work. Just my opinion. Have you checked into apartments in your area that have the rent based on income? Maybe a garage apartment somewhere?
Slap yourself, that wasn't funny.