[ to be fair, they don't usually bring it up. 2B isn't sure why she did, either. It felt like a lie, to tell him that she fulfilled her duty honorably; explaining that it all amounted to nothing in the end made her admission sound less credible. Even now, months after the fact, she's not brave enough to say outright that yes, she carried out her mission without fail, but she hated it more than anything. The desire to be a good soldier is built into her too deeply.

She's slightly taken aback by the apology. For whatever reason, she wasn't expecting it. ]

... The enemy was able to hack into our main servers and infect all connected units with a virus that caused fatal errors. Our last orbital base was destroyed, as were our remaining troops and resources.

[ a beat. She adds, with some muted wonder: ]

You don't have to apologize.