Somehow Hong Bi felt like she was finally getting something right as a mother, the mistakes of the past wouldn't happen again and her daughter would be a good person and have a good life.
She would not allow a lack of love or her daughter to do something out of obligation and that included an arranged marriage... There was no chance of that happening again.
Hong Bi was unable to be against Hong Bo's marriage to Liu Wei, especially knowing what her experience with Hui Xu was like.
Regret killed, even though it didn't literally kill, that feeling gnawed at you inside and ate all your will to live like a parasite and that's how she died.
She died of sadness to see that her life had been rich, but filled with misery of spirit.
Of course, it was also a relief to know that Hong Zan was a good man, he could be much more loving than anything she could dream of.
