Why Is He Still Addicted When He Uses His Nemesis as a Furnace?

[The whole sect knows that we don't get along, except at night! Everyone in the immortal world knows that the Demon Lord Lin Qing and the Sword Lord Gu Yuan have been mortal enemies for centuries, and they will draw their swords when they meet. But no one knew that Lin Qing's skills backfired and he suffered from the fatal "skin hunger syndrome", plus a top-secret forbidden technique - sharing of five senses. During the attack, if Gu Yuan is not touched, he will explode and die. In order to survive, Lin Qing drew his sword during the day and said harsh words: "Gu, sooner or later I will kill you to sacrifice to heaven!" At night, he sneaked into Jian Zun's cave in the dark, hugged his waist tightly, and said with a trembling voice: "Borrow me some real energy, just one breath..." Gu Yuan practiced the ruthless way, and he should have killed this demon with one sword. But whenever Lin Qing had an attack, Gu Yuan, who was thousands of miles away, would feel an inexplicable numbness and hotness in his body. Until one day, Lin Qing was forced into a desperate situation and planned to cut off her synaesthesia and die. The Sword Master, who had always been aloof and ascetic, was completely crazy. He cut off the ladder in front of everyone in the world and held him tightly in his arms. His eyes were scarlet: "You want to run away after using it? It's too late."