Marriage problems

This is my husband's first baby and my second. Since she has been born it seems like my marriage has went down hill. My baby is breastfed and has only recently started taking a pacy only for the babysitter. He keeps pushing for her to use it at home and she refuses. I will try occasionally but if she refuses I don't force it. And he gets mad at me. It's always something that he's getting mad at me for acting like I don't know what I'm doing. Am I the only one in this situation?