I really need to get this out because I have been holding it in, so maybe I could tell him at the beginning of the session that I feel very angry and hurt by him and that I feel like shouting and screaming at him. Maybe if I warn him how I feel he will be able to help me. I dont know

Sounds like you are saying you know what you need to do and you are finding a way to do it. So IMO that sounds a really good place to be. Let us know how it goes.