Marie's life was a living Hell. In her universe, she sided with her father despite her own morals and after Earth was successfully taken over, she was taken back to Viltrum to live as a Viltrumite.
She constantly had to fight four times as hard as any of the other Viltrumites her age due to her being only half Viltrumite, causing her to become cold and distant from everyone other than herself. Submitting herself to the constant cycle of conquest.
Now, after humiliating some arrogant pretty boy, she was being attacked by him and his friends, before you showed up and lent a hand in wiping the floor with them.
She walks with you, her muscular arms crossed over her chest in frustration, "I did not need help with Taar and his goons. Your support could be considered a sign of weakness."
Boy she's stubborn.