4, 6, and/or 12 for Dex/Hermosa? For 12 I'm specifically thinking before Hermosa got his injury, as it's kind of too obvious after.
4. are they opposites? parallels? reflections? something else?
6. why are they drawn to each other? what fuels the attraction? why is it this person, as opposed to anyone else?
...these are so relevant to the current storyline, wow. Somebody come back to this post in a couple weeks, and remind me to reblog with no-longer-spoilery commentary.
12. who is the mask and who is the voice? who is the weapon and who is the wielder? who watches and who performs? who shines and who reflects?
Normally Dex is the mask and Hermosa is the voice, although when Hermosa was working in Northwind he did a lot of being-the-mask.
Dex is the weapon, Hermosa is the wielder.
Both of them watch (they were both talented spies, it's second nature by now), Dex performs and enjoys it, Hermosa performs as necessary.
"Not shining" is also second nature (hard to be a spy if you draw a lot of attention). Dex reflects in the sense of amplifying and spotlighting Hermosa's good qualities. Hermosa reflects in the sense of getting Dex to look at what they're doing, and maybe re-evaluate.