Be specific and tell her how her behavior affects you. Or describe the problem and tell her why it is bothering you. Let her tell you her view and ask her for suggestions on solving the problem. Offer your own solution and compare the two. If your discontent is within you, it may help to talk to a counselor and identify the source of your discontent.
Marriage offers a great deal to people, but it costs a great deal, also.
But, it is often possible for each person to work within the marriage to find personal happiness as well as couple happiness. Being married doesn't mean you have to give up all of yourself. You are entitled to have your own friends, interests and hobbies. Couples should spend time together, with other people and alone, doing things around the home and going out together, talking and working together, dreaming and planning. A marriage should be interesting and alive.