
How is she labeled a villain when even in the original story, she didn't intend to poison the princess?!

Because she was blocking the hero (her "fiance") and the heroine (the crown princess) from being together. She's also done a lot of stuff to keep other girls away from the hero, due to that, no one believed her when she said she didn't do it.
So although she was a victim to another's plan, she was still a villain in the story, probly had more than 1 villain lol who knows

It's very pitiful seeing as Mallisa kept giving countless chances to the prince. I believe the reason she is obsess with the prince was because he showed her kindness that she was used to as her closed ones are really helpful. As we see in the comic, she thought the prince like her too and she has a reason not to(well sorta) She was engange with him and kidda hang around each other which means you both likes each other. I know about political marriages but in her eyes it doesn't look as such since I don't think the prince was aiming that in the first place. Anyways, there's also when she was invited to her thought to be lover having an affair on her. I mean she's pretty dumb for not getting the clues but he still hang around and won't get their engagement cancel so she prob think it's all good. So she harass the other ladies. Which I don't condone, but like those ladies know what they are getting themselves into since they know the prince is engaged and they heard she's pretty violent towards women that slept with his man. Like yall know y'all home wrecking. The women are also pretty insensitive, they know the prince isnt into her, just hoping on the prince's std ass dick. Girls why you so tirsty ┑( ̄Д  ̄)┍
This shit made me cry like like a child throwing a tantrum ╥﹏╥