Why do you need this piece of dung in your life? Do you not have a good group of friends and interests where you live to the point that you allow a man that is not even in your presence to treat you like "a dog?"
Stop contacting him for fk sakes. It's that easy.
"what does this mean?" It means you have very little self respect if you'd keep contacting a guy that tells you "too bad" when you call him out on his rude, incensitive and abusive behaviour.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion