Sweet blackrose, I hear your pain... Have you been looking for another job? I was in a similar situation for awhile last year. My boss knew how I felt, but thought I won't leave, since I was with the company for about 8 years (finance world). Sooo, since he didn't do anything about my situation/position, I started looking around, sending my resume out, found a new job and eventually I left. There was some begging and "let me see what I can do" talk, but it was obviously too late. Enough is enough. Just seriously looking for another job is a breath of fresh air and you start to see the light at the end of the tunnel...
On the other hand, having a job you hate unfortunately IS better than not having one at all. Of course, if the hated job doesn't interfere with your health. I have few unemployed friends and they are miserable and kind of ready to take a cut in pay, just to start doing something.
If you decide to start looking around, best of luck and keep us posted!
Greetings from Miami