Snatching his omnicom back, there's an actual...hurt look on his face, just for a moment, before the shields are back up, and his own cold expression is there.

"Yes, well, I'm sorry I'm no longer entertaining for you now that I've discerned your ruse."

He believes her. He thinks he just got confirmation. She's going to flit off and tease someone else, and he's going to go without the recurring...warmth he was trying to pretend he wasn't fond of that her presence kept bringing him.

Of course that's how it is. Some had deep, genuine fondness for him, like his friends in the Legion, but a part of him knew that anyone that seemed to care about him more than that was likely being deceptive. Past experience had taught him that.

Inwardly, Brainiac 5 is cursing himself for not detecting the telltale signs of her social manipulation sooner.