According to the information given, I recommend you to read '80 Marriage: How Many Flowers Have Fell' which is a modern romance novel about urban life. Although I'm not sure if this is the old novel you're referring to, this novel does describe the love-hate entanglement between a woman and three men, and it also contains some thoughts and discussions about marriage. I hope you like this fairy's recommendation. Muah ~😗
😋I recommend the following two novels to you: 1. <<Beautiful Spring>>: This is a novel about a fight in the palace. After the female protagonist is reborn, she subjugates the scumbag step by step and brings her underlings to become the overlord of the young miss. The male protagonist had a strong desire to protect the female protagonist and launched a fierce attack on the female protagonist. The plot of the novel was enjoyable, and the love line between the female lead and the male lead was full. 2. "Request to Be a True Beloved Concubine": This was an ancient romance novel. The female protagonist was originally the daughter of a general. In order to find out the truth about her family, she disguised herself as a man and was inspirational all the way. Later, she met the male lead, and the two of them worked together and slowly got together. The plot of this novel was rich and compact. The male protagonist took good care of the female protagonist, and the relationship was very warm. I hope you like this fairy's recommendation. Muah ~😗
The Eldest Princess and the Crown Prince had some emotional entanglements. The Eldest Princess used her beauty to seduce the Crown Prince, and the two fell into a relationship that violated ethics. The Crown Prince had developed feelings for the Eldest Princess 'beauty, but what he truly liked was the Eldest Princess as a person. The Crown Prince drew a portrait of a faceless woman in his room, hinting at his love that he did not want others to know. The Eldest Princess and the Crown Prince had a relationship of mutual use. The Eldest Princess needed the Crown Prince to help her control the palace treasury to increase her power, while the Crown Prince needed the Eldest Princess 'wisdom to consolidate his position as Crown Prince. However, the Eldest Princess was not a loyal supporter of the Crown Prince. She colluded with the Second Prince in private because she wanted to see the Crown Prince and the Second Prince fight and benefit from it. In the end, the Qing Emperor discovered the Eldest Princess and the Crown Prince's forbidden feelings.
The Eldest Princess and the Crown Prince had some emotional entanglements. The Eldest Princess used her beauty to seduce the Crown Prince, and the two fell into a relationship that violated ethics. The Crown Prince had developed feelings for the Eldest Princess 'beauty, but what he truly liked was the Eldest Princess as a person. The Eldest Princess and the Crown Prince had a relationship of mutual use. The Eldest Princess needed the Crown Prince to help her control the palace treasury to increase her power, while the Crown Prince needed the Eldest Princess 'wisdom to consolidate his position as Crown Prince. However, the Eldest Princess was not a loyal supporter of the Crown Prince. She colluded with the Second Prince in private because she wanted to see the Crown Prince and the Second Prince fight and benefit from it. In the end, the Qing Emperor discovered the Eldest Princess and the Crown Prince's forbidden feelings.
The Eldest Princess and the Crown Prince had an unethical relationship. The Eldest Princess used her beauty to seduce the Crown Prince. The Crown Prince fell in love with her beauty, but what he really liked was the Eldest Princess as a person. There was a relationship of mutual use between them. The Eldest Princess needed the Crown Prince to help her control the palace treasury to increase her power, and the Crown Prince needed the Eldest Princess's wisdom to consolidate his position as Crown Prince. However, the Eldest Princess was not a loyal supporter of the Crown Prince. She colluded with the Second Prince in private because she wanted to see the Crown Prince and the Second Prince fight and benefit from it. In the end, the Qing Emperor discovered the Eldest Princess and the Crown Prince's forbidden feelings.
The Eldest Princess and the Crown Prince had some emotional entanglements. The Eldest Princess used her beauty to seduce the Crown Prince, and the two fell into a relationship that violated ethics. The Crown Prince had developed feelings for the Eldest Princess 'beauty, but what he truly liked was the Eldest Princess as a person. The Crown Prince drew a portrait of a faceless woman in his room, hinting at his love that he did not want others to know. The Eldest Princess and the Crown Prince had a relationship of mutual use. The Eldest Princess needed the Crown Prince to help her control the palace treasury to increase her power, while the Crown Prince needed the Eldest Princess 'wisdom to consolidate his position as Crown Prince. However, the Eldest Princess was not a loyal supporter of the Crown Prince. She colluded with the Second Prince in private because she wanted to see the Crown Prince and the Second Prince fight and benefit from it. In the end, the Qing Emperor discovered the Eldest Princess and the Crown Prince's forbidden feelings.
The Eldest Princess and the Crown Prince had an unethical relationship. The Eldest Princess used her beauty to seduce the Crown Prince. The Crown Prince fell in love with her beauty, but what he really liked was the Eldest Princess as a person. There was a relationship of mutual use between them. The Eldest Princess needed the Crown Prince to help her control the palace treasury to increase her power and use the Crown Prince as a substitute for the Qing Emperor. And the Crown Prince needed Li Yunrui's wisdom to consolidate his position. There was a relationship of interest between the two of them, but there was also an emotional entanglement due to their attraction. However, the Eldest Princess was not a loyal supporter of the Crown Prince. She had secretly colluded with the Second Prince. She only wanted to see the Crown Prince and the Second Prince fight and benefit from it. In the end, the Qing Emperor discovered the Eldest Princess and the Crown Prince's forbidden feelings.
The Eldest Princess and the Crown Prince had an unethical relationship. The Eldest Princess used her beauty to seduce the Crown Prince. The Crown Prince fell in love with her beauty, but what he really liked was the Eldest Princess as a person. There was a relationship of mutual use between them. The Eldest Princess needed the Crown Prince to help her control the palace treasury to increase her power and use the Crown Prince as a substitute for the Qing Emperor. And the Crown Prince needed the Eldest Princess 'wisdom to consolidate his position as the Crown Prince. There was a relationship of interest between the two of them, but there was also an emotional entanglement due to their attraction. However, the Eldest Princess was not a loyal supporter of the Crown Prince. She had secretly colluded with the Second Prince. She only wanted to see the Crown Prince and the Second Prince fight and benefit from it. In the end, the Qing Emperor discovered the Eldest Princess and the Crown Prince's forbidden feelings.
The Eldest Princess and the Crown Prince had an unethical relationship. The Eldest Princess used her beauty to seduce the Crown Prince. The Crown Prince fell in love with her beauty, but what he really liked was the Eldest Princess as a person. There was a relationship of mutual use between them. The Eldest Princess needed the Crown Prince to help her control the palace treasury to increase her power and use the Crown Prince as a substitute for the Qing Emperor. And the Crown Prince needed the Eldest Princess 'wisdom to consolidate his position as Crown Prince. There was a relationship of interest between the two of them, but there was also an emotional entanglement due to their attraction. However, the Eldest Princess was not a loyal supporter of the Crown Prince. She colluded with the Second Prince in private because she wanted to see the Crown Prince and the Second Prince fight and benefit from it. In the end, the Qing Emperor discovered the Eldest Princess and the Crown Prince's forbidden feelings.
The Eldest Princess and the Crown Prince had an unethical relationship. The Eldest Princess used her beauty to seduce the Crown Prince. The Crown Prince fell in love with her beauty, but what he really liked was the Eldest Princess as a person. There was a relationship of mutual use between them. The Eldest Princess needed the Crown Prince to help her control the palace treasury to increase her power and use the Crown Prince as a substitute for the Qing Emperor. And the Crown Prince needed the Eldest Princess 'wisdom to consolidate his position as the Crown Prince. There was a relationship of interest between the two of them, but there was also an emotional entanglement due to their attraction. However, the Eldest Princess was not a loyal supporter of the Crown Prince. She had secretly colluded with the Second Prince because she wanted to see the Crown Prince and the Second Prince fight and benefit from it. In the end, the Qing Emperor discovered the Eldest Princess and the Crown Prince's forbidden feelings.
"Hell's Return" might fit the novel you're looking for. It's a novel about a mysterious world. One of the main characters is a demon, and there are plots in the modern world and the demon world. I hope you like my recommendation, Mwah ~😗