My boyfriend is direspectful towards me...?

My boyfriend (who I love very much) doesnt know how to argue without cursing at me.. tells me to shut the f*ck up... calls me a "****"... etc. I was raised in a family where my parents disagreed alot but it never once did they curse at each other or go to bed angry with each other. My boyfriend comes from a broken family, and his father is not exactly a model parent, which is why i understand why he is like this, but it doesnt mean i accept it. I love him so much, he is so good to me at any other time, but it hurts me deeply when he curses at me and calls me a **** when angry. He doesnt realise that he will lose me (and i have told him several times how it hurts me and he is trying)if he keeps it up (he wants to marry me).Dont get me wrong he's not a horrible guy, it is just that it really bothers me when he does that.Everyone argues its normal, but is there any need to be disrespectful? So I guess im asking for advice and whether you think it is possible that it will ever be different