Tian Shengyun met Liu Weiyang when they were in college. During the six years of their relationship, they went through a lot of psychological construction before agreeing to be together. Later, they went through many ups and downs and finally decided to end the relationship.
How many insights did Liu Weiyang go through in the six years between breaking up and getting back together before he could change his attitude towards life, win Tian Shengyun's nod again and agree to get back together, and firmly accompany him throughout his life.
Everything Tian Shengyun and Liu Weiyang experienced just confirms that sentence: Love is the sinking of free will. Falling in love is nothing special, but persisting in love is remarkable.