The first point: the desire for brotherhood. Although Wei Wuxian's treatment in Jiang's family was better than Jiang Cheng's, and Jiang Cheng was also very tasteful when he was a child, their feelings developed rapidly later. Wei Wuxian was afraid of dogs, and Jiang Cheng drove them away all his life. This feeling of growing up together is precious. Alone, Jiang Cheng hopes that Wei Wuxian will come back, so that he will have a companion and will not be lonely.
The second point: hatred that hurts loved ones. The reason why Gu Jiang suffered this disaster has a lot to do with Wei Wuxian, especially what Wen Ning did under Wei Wuxian, which made Jiang Cheng the most unbearable. Therefore, the family hatred finally shifted to Wei Wuxian. Jiang Cheng, who saw Wei Wuxian resurrected again, although his malice in his heart has weakened a lot, he still doesn't want to forgive Wei Wuxian easily. At least he has to clean up.
The third point: the jealousy of the blue forgetting machine. As we all know, Wei Wuxian had a deep affection for Lan Forgot Machine before his death, and it should have reached the level of caring for each other. Jiang Cheng and Wei Wuxian have been together for many years, and their feelings are naturally deep. But in the end, Wei Wuxian chose to get close to Lan and forget the machine, but gradually alienated Jiang Cheng, which made Jiang Cheng very jealous. In fact, I doubt that Jiang Cheng had any envy for Wei at that time. He should have a feeling of taking possession of himself.
Jiang Cheng and Wei Wuxian have been good friends and brothers since childhood and have deep feelings. Wei Wuxian lost his parents at an early age, grew up in Yunmeng Jiangshi, and lived and studied with Jiang Yan and Jiang Cheng. Later, Wei Wuxian got into trouble in Shi Lan, Gusu. Although Jiang Cheng complained a lot about this, his relationship with Wei Wuxian is still excellent, and he often drinks and plays together.
At home, because Jiang Fengmian, the patriarch of the Chiang family, loves Wei Wuxian greatly, he has not been investigated for his troubles. He was very strict with his son Jiang Cheng, which made Yu Zi very dissatisfied. Besides satirizing Jiang Fengmian, he also taught Jiang a lesson. It was Jiang Cheng who resented Wei Wuxian. Wei Wuxian noticed in time that the patriarch was Jiang Cheng, and would always wait behind Jiang Cheng to help him and be a dreamer.
The Shi Wen family in Qishan forced the aristocratic disciples to accept enlightenment in order to keep the immortal doors, and collected the swords of the aristocratic disciples who came to educate them. In Xuanwu Cave, when Jiang Cheng couldn't fly without a sword, Wei trapped in the cave had no envy, and even walked for seven days and seven nights to move reinforcements just to save Wei. It can be seen how important Wei Wuxian is in Jiang Cheng's heart.
Later, Jiang Cheng's parents were killed, and Jiang Cheng himself lost the elixir and became a cripple, giving up on himself. Wei Wuxian comforted him. Later, with the help of ancient books, he gave his elixir to Jiang Cheng, and he himself became a basket case.
You can't tell Jiang Cheng about this kind of thing, for fear that he won't accept his kindness and feel guilty all day. When all the immortals forced him to deal with Wei Wuxian, he chose to play a play with Wei Wuxian. The real relationship is life and death. The reason for the break is that Jiang Cheng thought that Jiang was killed by Wei Wuxian, but in fact he died for Wei Wuxian.
On the one hand, he is his best brother and playmate since childhood, on the other hand, he is his closest sister. It's really unacceptable. How much love and hate are there? Strong feelings have carried Jiang Cheng's mind, and he just wants to kill it quickly. Wei Wuxian is also a hundred schools of thought contend, and chooses to bear all this silently. After all, Jiang Lei is his dearest teacher elder sister, which is also a great blow to him.
It can only be said that fate played a joke. From the first brothers of life and death to the later swords and shadows, it was just a misunderstanding.
In Ling, Jiang Cheng and Wei Wuxian grew up together and played, lived and studied together with a childlike innocence. It can be said that their feelings are very good. This feeling can really be as heavy as a hand and foot.
When he grew up, Jiang really envied Wei Wuxian, his personality, his wisdom and his father's care for him, but only envy rather than jealousy. At this point, we can see that in Jiang Cheng's heart, Wei Wuxian really regards him as a brother. A brother closer than a brother.
Later, Wei Wuxian caused so much trouble. On the surface, Jiang Cheng is angry with Wei Wuxian, but in fact he is particularly concerned about him. Nature makes people, Wen Ning kills Jin, and Jiang is bored to death as Wei Wuxian. Jiang Cheng was particularly painful in his heart. He hated Wei without envy, but he was helpless. From these aspects, we can see that Jiang Cheng's feelings for Wei are really helpless, because they are too deep.
And family and friendship. In the final analysis, both of them have paid for each other. However, although they have been taught by a master since childhood, they have different views. To put it bluntly, Jiang Cheng and Wei Ying are not the same kind of people at all. One can single-handedly fight against the whole world for the sake of morality in his heart, and the other just wants to compromise and adapt to the situation. It is inevitable to part ways.