the original MC turns out to be villianess. I dont get it why would the original MC be so scheming in negative way when she was supposed to be heroine in the actual story. I really hoped that XWY would also get her happiness sadly it didnt go that route.

MC system practically non-existent.

ML the one with cheat skill -reading MC's mind.

The FL is a white lotus, oh and while both MC and FL are scheming but at least MC isn't plotting to get ML's wealth after divorce (she has money of her own) and she isn't trying to harm him like QY.

ML doesn't see the true character of those around him. FL just wants to seduce the male characters so they protect and she enjoys a rich life.

At the start, both didn't like each other. ML was indifferent, he simply ignored the MC and did not do her real great harm (although yes, you can condemn his lack of effort, but so does MC)

MC was acting to get a divorce. They had no emotional ties and apart from their marriage, I don't see any reason for either of them to intervene in the other's life. MC never cheated despite the fact that she wants to collect a 100 fresh meat.

MC doesn't trust ML, and vice-versa. She holds the I-already-know-the-novel prejudice and makes a lot of misunderstandings (albeit quite funny). The actual conversations between them are very few, as most is ML learning from MC's thoughts.

They simply don't owe each other anything.

She is, despite misunderstanding a lot, rather reasonable and actually more clear-headed than ML. ML did not mistreat MC, and I must say he too judged too quickly.

i.e. The system simply disappeared, even if it didn't play too much of a role. Plus, the ML's rivals simply went off without much of a fight. Their actions were completely backed by logic and morality though.