Lady Melissa had known the fact because, in her previous life, the Duchess had done it to her, she had tested Lady Melissa.
Lady Melissa, however, didn't stand up for herself, and that simple action made her give the Duchess a bad impression.
Lady Melissa knew not to make the same mistake, and ironically, this was the very same ball in Lady Melissa's past life in which Duchess Victoria had tested her, and to see how she would react.
Lady Melissa was going to stand up for herself this time, and maybe she would play against Duchess Victoria.
She would stand up for herself, not only because Duchess Victoria liked people who could stand up for themselves, but because she couldn't let herself be stepped on by others.
Lady Melissa knew her own worth, she wasn't the one who should be people's stepping stones, and she wouldn't allow herself to be a stepping stone for others.