Frankly speaking, he indeed handled the situation with Su Fei very poorly.
Knowing full well that Su Fei had feelings for him, he still allowed her to get close. If he had been more resolute, if he had made things clear to Su Fei earlier, maybe all of this wouldn't have happened.
Moreover, this woman had always been concerned about Tuanzi's death. Apparently, in her heart, she blamed Su Fei for Tuanzi's passing.
However, even if he was at fault, he still couldn't accept that Chen Zhi would consider divorce over such a trivial matter.
He had sworn to marry only her in this lifetime. If she divorced him, wouldn't he be doomed to bachelorhood forever?
Besides, subconsciously, he simply couldn't accept the idea of one day getting a divorce from her. She was his, his woman, his wife. Once she became his, she would be his for a lifetime—no one else should even think about taking her away.
Even if she wanted to leave, he wouldn't allow it.