There was no mention of Ye Liuyun's betrayal in the Invincible Sword Domain. Therefore, I don't know if Ye Liuyun has betrayed us.

Ye Liuyun from the Invincible Sword Realm was played by Wang Qinxiang.
Ye Liuyun was a character in Joy of Life. He was Ye Qingmei's nephew. He started off as a sword practitioner, but his strength had already reached the peak of the Ninth Pin. After fighting with Ye Qingmei's servant Wu Zhu, he comprehended Flowing Cloud Sanshou and advanced to great grandmaster. Ye Liuyun was a key figure in the Ye family and was known as the guardian angel of the Ye family.
Ye Liuyun from the Invincible Sword Realm was played by Wang Qinxiang.
Ye Liuyun in the Invincible Sword Domain was played by Wang Qinxiang.
The Invincible Sword Realm was a web novel written by someone on the Green Phoenix Peak. The novel told the story of Yang Ye, an outer sect disciple of the Sword Sect. He was born with great luck and misfortune. Yang Ye had been cultivating in the Sword Sect for many years, but his Celestial Chi had been absorbed by the Hong Meng Pagoda. However, by chance, he got the chance to cultivate. Regarding Ye Chen's specific plot and ending, the information given was not enough to provide an accurate answer.
The Invincible Sword Realm didn't mention clearly who had brought Yang Ye to the Spirit Realm. Therefore, I don't know who brought Yang Ye to the Spiritual Realm.
Ye Langye of the Invincible Sword Region was one of the four clones of Yang Ye's sister.
In Joy of Life2, Ye Liuyun's sword was reflected in the plot. Ye Liuyun's attack destroyed a sword. It looked like he had only cut off a small lock of Fan Xian's hair, but wherever his sword Qi passed, from the plaque to the restaurant to the floor, everything was split in two. It displayed the extremely powerful strength of a Great Grandmaster.
Ye Liuyun had used a sword before. In Joy of Life, Ye Liuyun was from Qing Kingdom and started off with swordsmanship. That year, Ye Qingmei brought Wu Zhu to Qing Kingdom. The Ye family was the capital's garrison. They wanted to check Ye Qingmei's chest, but Ye Qingmei refused. A conflict broke out. Wu Zhu hit Ye Ling 'er's father, Ye Zhong, so Ye Liuyun came with a sword to protect him. However, after being beaten up by Wu Zhu, Ye Liuyun abandoned his sword and learned Flowing Cloud Free Hand. Because of this, he became a master. Therefore, Ye Liuyun had used swordsmanship in the plot.
The ending of the Invincible Sword Realm was that Yang Ye had only won by one move through Xiaoyao Zi and the power of the entire world's emotions. Later on, Tianming knew that even if this world was destroyed, he would not be able to revive his brother. Later on, he prepared to go to a higher world, at the edge of the three-dimensional universe.