Reincarnated to a villain

Where she was supposed to get divorced with the guy after he came back from war but they didn’t

Reincarnated villain whose man cheated on her with the heroine so she gets with the crown prince

She remembers her past life and knows that she’ll get murdered by her husband so she tries for a divorce but the guy is in love with her

She gets reincarnated to a princess who’s in the running to become the empress but she was evil in the past

Reincarnated into a villain who was supposed to be in the way of the love of the two mc’s and gets killed early. When she gets there she accidentally has a one night stand with the male lead and they start dating. She also encourages the female lead to break up with her cheating boyfriend.

After her and her child were killed by her husband, the emperor, she travels back in time and is determined to have her revenge.