The only thing I do wrong is tell her how much I love her. I take care of the kids as often as needed, I'm nice to her all the time despite her coldness, I compliment her on her work and appearance, I support her job, and from what people tell me I do way more and have endured way more than a person should have to over these last 2 years.
As Dr. Phil would say, "How's that workin' out fer ya?"
Two books I would recommend for you, in addition to MWD's DivorceBusting or Divorce Remedy: "No More Mr. Nice Guy," and "Hold Onto Your N.U.T.S." I think you could benefit from both.
