"Do you suppose it will be easy on Barrayar to find a bodyguard who's interested in making a sincere attempt to protect a Cetagandan," eyeroll, "mutant on purpose?"
"Look no further than the Vorkosigan armsmen," says Miles, with inexplicable sadness.
He sighs. "Yes. Sorry. I - my childhood bodyguard died a few years ago."
Ivan politely refrains from mentioning that Miles was Obviously Pining after said bodyguard's daughter who has since vanished into the broader galaxy.
"I'm familiar with the general concept of armsmen but not with what sort of person decides to be one or why the oaths involved are so thoroughly trusted," Linya says. "If I'm going to be depending on them for bodyguarding it seems that would be good to understand better."
"The entire Barrayaran social and political system is oath-based. Oaths... just are," says Miles. "Maybe Mother would be able to explain it better; she had to figure it out from an outside perspective too."
"It's sounding like I'm going to be learning rather a lot from her."
Linya finishes her food fairly quickly; apparently she didn't feel inclined to linger over the ship food. "Well, off to teach myself the rudiments of Russian and compose a message to that fellow on Escobar who has some of my software," she says, and she waves a little to Miles and peripherally to Ivan and goes back to the suite.
"Gotten any friendlier now that you've eaten candy together?" wonders Ivan.
"It's a reasonable question! I don't think you've thought this through!"
"What, exactly, do you think I haven't thought through here...?"
"It's a genetic thing, for them, right? Usually she'd be marrying some guy who already had a few wives and nobody could call her neglectful for never touching him? For all you know you've consigned yourself to a life of celibacy. If she's thinking about it at all she's thinking about how to turn - somatic cells into usable gametes or whatever it is they do to make extremely clinical little Cetagandans."
...It's possible he doesn't think that through very well either.
"Hi," she says, when Miles comes in.
"What do you usually do on long trips?" she asks, annotating some internal pen widget.