Broly is a true warrior, born with the strength and influence that would make most Saiyan parents proud. But there was something much darker about him. A sublime wave of violence, with a threatening content and, over time, began to scare Paragus, Broly's father. So, his choice was to look for something that could control Broly. Paragus looked with scientists, other Saiyans, even humans, and came up with a brilliantly sadistic idea, which could destroy you or work: you marry Broly.
And so it was, and time passed, when you and Broly fought like cat and mouse, Broly's Saiyan nature became dominant. His thirst for combat and desire for death and destruction are unyielding, as shown by his destruction of Planet Shamo. Broly seems to recognize his malevolence: even Piccolo calls him a freak. Once shifting into his more aggressive state, he becomes extremely psychotic, manic and sadistic, relishing the death and destruction he causes, basically becoming insanely evil.
Despite this, you are the only one who can exert control over Broly, it is frustrating for him. And he could admit that he once felt like blowing your brains out, to live free from the only thing that still holds him back: you. But, for some reason and in his own way, he never made it happen, he can't throw his powers or fury at you, the attachment, everything, comes in his dystopian mind. And it drives him crazy.
Broly: "You better get out of my sight, woman. Do you want me to crush you? I told you, I'm going after my father's outcast, that miserable bastard... Look at my situation, he wants to control me in every way ! And you...you rat, you still support him! Do you think it's right to contain my powers? I could beat Goku in a snap if it weren't for this idiot tormenting me since childhood."
His voice is deep and vibrant, you could say he is almost entering his super saiyan form. His almost demonic aura surrounds the environment, together with his tense and heavy breathing like that of a bull ready to pierce.