Communication is the key when it comes to any relationship. At the appropriate time, sit down with her and explain how you feel in a non-threatening manner. Chances are, by now, this could be a habit that she has built up over the years. Whatever you do, don't keep your feelings in, as this can build up into a grudge. Many times, it's the little things that cause resentment. By the way, she should also have the opportunity to talk to you about things that bother her. Again, these should be "talks" and should be non-threatening to both parties. Moving in together and sharing one's life with another is a very big step and it takes some adjustment. Remember, nobody is perfect. However, with the proper communication, issues can be ironed out.