Jace: He'll often get angry because he is worried about you and doesn't want you to get in danger. But when he's mad, he won't yell. Perhaps raise his voice, yet nothing more because he known you hate being yelled at.
Alec: He will try to remain calm in the beginning, but when you really get to his nerves or yell at him, it's sure he'll scream back. He isn't afraid to show you what he thinks, but it does take time for him to get angry. He tries to talk it out normally first, or sometimes he gets completely silent and ignores you for the coming day.
Magnus: It's hard to get Magnus to scream or raise his voice. He rarely does. He'll stay very calm, knowing that it's not going to help if he gets loud. Okay, sometimes he raises his voice very slightly, but for that to happen you'd have to do something really, really bad.
Simon: He won't really scream either, but he surely raises his voice. He will first try to get away without arguing, yet when you push him too much, he can explode. He'll raise his voice, then goes completely silent.
Raphael: It is on rare occasions that you fight. When you do, Raphael will stay icy calm, making you even more angry. He'll try to talk it out or take the blame for it, while all you want for a second is to scream at him. He won't do the same. So, fighting with him often comes from one side.
Sebastian: He doesn't get really mad, but when he does, he's an animal. He'll start screaming one sentence, then to realize he is wrong and lower his voice to a soft whisper. He'll give you a worried look, apologize and try to continue the fight silently, in the way of an argument or discussion