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The heartlessness you describe is "externally facing" -- the actions he takes and the way he interacts with others. That doesn't mean there's no heart at all in there; it just means he doesn't all...
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Source: https://writers.stackexchange.com/a/39262 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
The heartlessness you describe is "externally facing" -- the actions he takes and the way he interacts with others. That doesn't mean there's no heart at all in there; it just means he doesn't allow it to influence his actions. You can show signs of Bob mourning in his thoughts (if the story is first-person) or in brief private moments. Bob might keep looking at the portrait of the two of them in his quarters, or might carry something that had significance for the two of them. In first person he might think "this is how Alice would have solved this" or "I wish I could talk with Alice about this" or even a direct "my partner is gone and I feel incomplete" (or whatever your android would say along those lines). You have given your android intelligence, and that invites the complexities of emotions. Think of your android like a Vulcan, not like software that the programmer fully controls.