V had known that she and Jack were no longer suited to keep following along after seeing Handsome Guy revive Johnny Silverhand and then transform into another person right before their eyes.
Whatever these people were going to do next would definitely involve core secrets and the like. In a place like Night City, sometimes the more you knew, the faster you died.
It was not that she was worried Handsome Guy would do anything to her. Not only did she have a special relationship with Ciri, but his attitude had been sincerely friendly all along. When he took everyone to blow up Arasaka Tower, he had looked after them every step of the way.
What she worried about was whether other corporations would come capture and interrogate her if they learned she was connected to this mysterious man. Would they send her to a lab and slice her up?
The answer was very likely yes. In the information age, many things were no longer secrets. Following Johnny Silverhand to blow up Arasaka Tower was one thing—after all, everyone knew Johnny, so that was no secret.
But if she kept following the man after he returned to his original form and did things beyond the expectations of the major corporations, letting them see new technologies or profitable prospects in those actions, then she and Jack would never have peace for the rest of their lives.
Blowing up Arasaka Tower only meant opposing the Arasaka Corporation. The other corporations would not meddle in that; they might even try to recruit her to work for them.
But if she exposed value as exploitable as an endless oil field, that meant every corporation would set its sights on her. Even if they could not have it themselves, they would destroy it rather than