My husband keeps getting mad at me

For some reason he gets on to me for the smallest things. I just seem to annoy him. I don't know what I should do.. When we have an argument I always avoid talking to him because I don't want to deal with any arguments so I tell him I'm not gonna say anything. He gets angry even more and tells me just to tell him how I feel, but I say no I don't wanna argue. He's always yelling at me.