Alpha-EX stopped the machine and Cait returned at her body safty. When she was back to her, Alpha-EX cut the connection between the Holo-Tainment and the sphere. Maybe Cait would say: ''Why you stopped that?'' but he will just let Stephanie to explain the reason.
The only thing that bothered him was that memory from Alisa that was inside the program. There were many questions like: Why the program stopped? What happened when it was black? Only those questions will be answered by Cait. Alpha-EX feared the reaction of Cait when she saw the moment when he killed the human who shot on Alisa. Unconsciously, he ''created'' an AI during many years before he went offline, but with no body and that AI was Alisa. Maybe it was that reason why she could stopped the program for a moment. At the moment, no one have the answer.