Obviously, the ex - husband is a central character. His ex - wife is also a very important character as she is the one related to his regret. There may be friends or family members who either support or oppose his attempts at dealing with the regret.
In 'ex - husband's regret novel', a prevalent theme is the passage of time. The ex - husband looks back on the relationship with a new perspective after time has passed. Nostalgia is also a theme. He feels nostalgic for the good times in the relationship. And there can be a theme of moving on, where he has to accept the reality of the situation and move forward in his life, even with the regret.
I don't have a definite answer for you. It could be at any point where the story builds up enough tension or when there's a major conflict that makes him reflect and regret. Sometimes, it's a gradual realization that happens over several chapters.
The chances of getting your ex - husband back vary greatly. If you were the one who ended things and he still has feelings for you, your odds might be better. You can start by showing him that you regret your decision. On the other hand, if he was the one who wanted out and has moved on, it'll be more difficult. You need to assess his current situation and feelings towards you before making any moves.
Well, first, you need to figure out why you two split. If it was due to a silly argument, an apology might be a start. Try reaching out to him casually, like asking how he's been. But don't seem too desperate. Maybe suggest meeting for coffee as friends to start rebuilding the connection.
Shocking! The Paranoid Ex-Husband Is Reborn," was a modern romance novel by Wu Shiqi. The story was about the tragic experience of the female protagonist Lan Yaer in her previous life. After she was reborn, she vowed to leave the source of the disaster, but she accidentally discovered that her ex-husband, Wei Heng, had also been reborn. A series of stories happened between the two of them, including the encounter and cooperation with their best friend's enemy in their previous life. When Lan Ya-er realized the tacit understanding between her and Wei Heng, she realized that he was also reborn. The novel had been completed, with a total of 217 chapters.
You could show your firm attitude and make it clear that you have no intention of reconciling. Maybe avoid giving him any false hopes or ambiguous signals.