Some think it is a way for him to get physical intimacy without emotions
Regardless, you must decide what it is that YOU want.
Throwing things is unacceptable. Has he shown violent tendencies in the past? As mentioned, it may be a time for you to set firm boundaries with him. It will likely push him away but you must do things for yourself. There will be more forks in the road later, just be prepared to handle them and have plan B if necessary.
