4 - Get in shape. If you are already there - stay there. In a sense, your body also belongs to her, so take care of it.
5 - When she is telling you something that is hard to hear, stay calm and control your temper rather than immediately counter attacking. She may have a point. And if she does...
6 - Be Honest at all times and in all things, both with her and most importantly with yourself. And if she has a point, listen to her. If she honestly is mad at you, she is mad because you are a bonehead. So listen to why she thinks you are a bonehead, and stop being a bonehead. And if she is honestly out of line
7- Be willing to forgive her when she honestly is in the wrong. By no means does that excuse her, or erase the memory of what she may do, but once you grant her forgiveness, the file is closed. Don't reopen it.
8 - Don't say anything unless you mean it. And if you promise her to do something, don't promise it unless you can do it right then.
9 - Remember that every action you take, and every dime you spend, affects your wife in some way. It may be a wonderful way for her good, or a bad way that causes her pain, but it will affect her somehow. The only variable is to what extent one way or the other it goes.
10 - There is a reason why you married her. Try to remember what that reason or reasons where why you married her, and appreciate her for it.