Jealous bf over silicone

My boyfriend and I are living together. We had sex when we started living together but now we are waiting until we get married because of Christian reasons. We don’t really have a good sex life. (Everything but sex). It’s really boring. I jack him off. And he sometimes does the same for me but I don’t know how to be satisfied without penetration. So I said I want a dildo and he can use it on me. He got so offended that his fingers aren’t enough and he started calling me a bitch and basically just self-deprecating. He said that he has a dirty rag as his wallpaper on his phone because that’s who he is? He’s being so dramatic. He literally said That if I get a dildo I’m going to be used to another penis and I’m going to look for other I’m basically gonna cheat on him. I told him that vaginas arent clay and that’s not gonna happen. It’s not like I want some huge dildo I want some thing until we can get married. I really don’t know what to do. He is seriously being so hateful to me he’s acting like I cheated on him and that he’s gonna break up with me. He keeps telling me to find someone else