Controlling and impulsive

When we argue my boyfriend and me or I'm trying to tell him how I feel in a situation between him and I or about his son, he gets very impulsive and always wants to be right about everything. Sometimes to the point that he gets mad and wants me to go out of his home right away (the 2 times it happened just when we were in bed). He's pushing me out of the bed and tell me to go out and if I don't do it, he threatened to call the police.

That's commonly how people are. Wanting to be right that is. However if it's this bad then there's a problem. He can't just kick you out his house whenever there is a small differ in opinion or conflict in the relationship. Who knows it may even evolve into aggression. I'd suggest talking to him about this, about him accepting your views and trying to consider them into his own. Also if you shout when you argue try not to do that, it only angers the other person. He has to change this behavior it won't work in a functioning relationship. Since it's either he works out this problem and stops acting this way, or you try to avoid any argument in silence with the vain hope none of that ever happens again. Which is really bad since there will be little communication and communication is the foundation of a relationship. Sooooooo, yeah that's gotta be fixed, or at least reduced. If it happens very often and majorly, and you have asked him to stop and nothing is getting through. I'd consider breaking up. Only if it's that bad though, that it's happening constantly and you find yourself being more sad than you are happy with him.