
He’s in pain and doesn’t know or want to address it. Likely doesn’t have the words to accept whatever put him in the persistent emotional state he finds himself in, so he’s lashing out not likely just with you, but other people as well, in a subconscious bid hoping someone or something says the thing that reassures him he will figure out how to solve whatever’s bothering him. (I apologize for being so general but with general information provided I can only give a general answer)