What's if it was his preference from the beginning? What if something little in him wishes the war, with all it's woes, would never end so he'd keep seing men in fishnets, a thing almost impossible at home. By his glance, I can tell this thought could've crossed his mind at least once.

Isn't your spren a woman?

After 12 months playing in the sandbox, if the PX trailer only has women's undies and the mail has been delayed by IRAM again, you're gonna find a size that fits.