Li Zheng's words were meant to persuade Sang Pingliang and subtly remind Sang Hong and his brother, hinting at Sang Hong to apologize first, and once he apologized, Sang Yufei would naturally follow suit. Then, with the help of the fellow villagers, the matter would be smoothed over and considered resolved.
In the past, Sang Hong would have apologized long before it escalated to Li Zheng's involvement, but considering his brother's future and Second Uncle Sang's actions indeed being disheartening, reflecting on the past, he decided to let it go. Such an elder, it's better off not having one at all! Thus, he pretended not to see Li Zheng's hints.
