It's not... He didn't actually want Rong Zhi to die...
In fact, he was just overwhelmed with anger, he hated Rong Zhi for his heartlessness and ungratefulness, and wanted to see him hurt, wanted to see him in tears, wanted to see him show a vulnerable side, hoping he would look like... a human.
Even though Rong Zhi deceived him, betrayed him, injured him and harmed him, he still didn't want to kill Rong Zhi.
Now that Rong Zhi was dead, he felt as if he had plunged into an eternal winter that would never warm again.
Rong Zhi was dead, and in killing him, he had played a part.
Hua Cuo suddenly burst into a piercing, crazed laughter, much like the time he had broken ties with Rong Zhi years ago, but now with even more despair.
Why did he only understand now... What he wanted the most was not to kill Rong Zhi, not to see Rong Zhi in pain, but to return to the very beginning, to the time when they would amicably talk and laugh together.
Even if it was all fake.
