[You've detached yourself from it all; to you, nothing is important anymore.]
Gu Ran remembered these words well, and strived to practice them in his daily life. By doing so, he could achieve happiness without relying on external factors and not be saddened by personal losses.
Therefore, even if Zhuang Jing's affection for him was actually quite low, he could accept it with equanimity.
...if he really could do that, that is.
Just don't let it fall below 80, no, 60 would be enough!
Gu Ran detailed the affection gauge, akin to dividing it into stages like kindergarten, primary school, middle school, high school, university, master's, doctoral, and postdoctoral levels.
0 is neutral;
Below 0, or the negative range, indicates disdain, dislike, loathing;
Above 0 is okay, nodding acquaintance, friendly, like, love, deep love.
60 is like, in this day and age, among some men and women, it's already sufficient to start dating—some are okay with 50, others insist on 90.