Fiancé is always angery-HELP

My partner (28 male) and I (27 female) have been together for almost 5 yrs, live together and argue (who doesn’t lol). But I try to calmly express my feelings and not to lash out and say something in the moment just to hurt him. My partner however in fights yells and screams at me (I have many time told him how much I hate getting yelled at, that it hurts, and tried to help him think of ways to help him step back and breathe and come back when he’s calmer-doesn’t really ever work-still yells). A couple of times has told me to leave and stay somewhere else for the night, because he is so angry and needs his space to calm down. I told him that saying this hurts and makes me feel like his appt that he pays the rent on (I’m not on the lease) is not truly my home as well (even though he asked me to move in), he has continued to say stuff like this anyway if he is angry enough. He’s never actually followed through with it though we usually work it out once he calms down. This last time though this past week, he got so upset that he took out my suitcase out some of my clothes in it and told me to get out and that the relationship is over and that if I don’t leave he will call the cops. He eventually calmed down and we talked things out, however the way he lashes out like this is still bugging me. I brought it up to him and he basically told me to get over it and he didn’t know what to tell me because at that moment we weren’t in a relationship and it wasn’t my Apt too. I’m still bothered with how he escalated this argument and others and lashes out just to hurt me (or at least that’s how I feel). I don’t know if I should leave, if I should bring it up again (starting another fight), stay and work it out?…Help this last fight in question; we are saving up money to go on vacation and see my sister. He saw a good deal on a car online and want to buy it ($500) and resell it since nothing seemed wrong. I didn’t like the idea since the money is for vacation. Then he started yelling saying that I started it.