Poe wasn't bothered by the territorial display so much as he was endeared by it. It was a rare thing, for Armitage to be jealous or even particularly possessive (barring a few occasions where almost dying or disappearing was happening) so when it came up it was something of a confusing delight.
Well, maybe not delight. Poe didn't take pleasure in his husband feeling poorly about anything, even if he did pout cutely. Particularly when looking a bit on the drowned side.
"You're certainly allowed to be," Poe said while he reached over to push some of Armitage's wet hair out of his face. "Does it make a difference that I'm not interested?"