Unfortunately, this is pretty much exactly what one can expect when having a relationship with someone in active addiction.
It is meaningless to you right now, I know, but the one thing I can tell you is that he is not doing any of this to hurt you specifically. He is doing what addicts do, and his addiction will not let him concern himself with the consequences of his behavior.
The sad fact is that he is not in a position to be a healthy relationship partner to anyone right now, and he wasn't when he got involved with you either. He is too deep into his addiction to recognize that, but it's important that YOU recognize and accept it so you can move on.