Walking on egg shells around an angry mate, making excuses for his (or her) behavior, and telling others, "Watch what you say...don't act like this...and you know how he is..." isn't normal. Who wants to worry over what a partner might do so often? Evidently your mate has a problem controlling his temperament. Now you can play the "keep the peace" game until he gets violent with you or you can opt out and seek a plan of escape. Your choice.
Read Ten Alarming Domestic Violence Statistics