I'm with Ayla...she said it perfect.
My 11 year marriage went down the exact same path. There were occassions that I thought I really did love him, and wanted to work through our troubles, but more often than not we would get into a fight, and my hatred torward him totally blinded out any feelings of love I may have thought I had for him.
I was finally able to get out of the relationship (our divorce was final March 12th...YEAH!!!!!), and I am now in a wonderful, loving, HEALTHY relationship. Even when we get into our worst arguments (which are so minor compared to the fights I would have with my ex) I still love him deeply underneath my anger, and never, EVER do I ever experience any emotion remotely close to hatred toward him. No matter how mad he makes me, I always love him.
My new found love life has taught me one thing: Once you actually begin experiencing hatred toward your partner, the relationship is shot. There is no coming back from the place you have reached, and things will only get worse with time. Don't make the same mistake I did, trying to stick with it and make it work. My biggest regret about my failed marriage is that I waited so long to end it, and wasted so much time and effort on it. I lost several good young years of my life in that marriage, and I can't get them back now. Get out while you can, and take that initiative to find TRUE happiness and love in your life. You'll be awfully damn glad you did when the right partner comes along.
Mimi