MEN!!!

Why is it that I'm always wrong and he is always right even when he knows I'm right!!!???!! he is always blaming me for the stupidest things, sometimes knowing he did it too! all day I've felt so little because he keeps putting me down making me feel like everything is my doing!!! and it's not like I can just say fuck this and walk out on him we have a beautiful little girl that needs both of us.. is his ego what's keeping him making me feel like nothing but trash or just a piece of ass to him?? I'm so sick of the continuous attitude I get from him...I love him but I'm so sick of his attitude that I even think about up and leaving with our little girl...Can someone please tell me if this is normal for the first year after bring a baby into the home or is our relationship screwed??