Arguing

When me and my boyfriend argue it feels like he turns the blame to me. How do I tell him with out making him feel like a bad person. We both are only 16 so it's dumb stuff we argue about but still hurts sometimes. He's not a bad boyfriend he's really good to me and would cry if he ever hurt me. I'm not looking to end things with him for a long time so I want to be able to communicate with him how I feel about this better. Sorry for the bad grammar I'm not the best at writing.