Issues on the home front

It seems that my wife and I have lost our "new car smell". As much as it pains me to say that. It seems that in our disagreements, my wife has made her feel as if I don't respect her or the love that we once shared has faded. I feel as if I have nothing but our love, our marriage, and our friendship in mind during the past two (almost three) years. I love her so much and want that spark back. I feel as if I'm stuck/lost in this rut that needs to get out of here. I need help. I need to get back to showing her that she means the world to me. I need to show her that I do love her so freaking much. HELP!!