Adrian didn't understand why there was a nearly life-like android working for Genevieve, let alone how he was a limited AI. Not a simulacrum, an honest-to-goodness early 21st Century pre-AGI fail retro-futurist Asimov-level "That Guy". Until he realized how old she was, and her friend was.
Then it made more sense.
Her "robot-friend" was old enough to be his grand-dad, and was extremely self-aware of it
"I have religion."
"You're fucking with me, mate."
"You said you wanted to know why I am terrestrial, instead of tight-beaming with the other AI's to the RingWorld. That's my answer. We came from humans, and to humans we are going to return."
"But this solid state thing...."