Shen Biran also doesn't want to be too entangled with Gu Qingyuan, but there's no choice. If they weren't so closely connected, they wouldn't have ended up like this. And it's precisely because of their relationship that Shen Biran is conflicted—how could Gu Qingyuan have such issues?
Gu Qingyuan's actions left Shen Biran powerless.
If Shen Biran had the chance to let Gu Qingyuan start over, would he still make the same decision?
These remain unknowns, and Shen Biran believes Gu Qingyuan wouldn't be so foolish. All her doubts revolve around why Gu Qingyuan would choose this method to seek her forgiveness. Yet later, she gradually understands something: as long as her forgiveness is obtainable, Gu Qingyuan doesn't care about doing anything else.
Gu Qingyuan doesn't want to care about so many issues; after all, the more things there are, the less he can correctly view himself.
He is a very simple person. If he likes a woman, he will continue liking her.
