Barry's scent goes slightly brittle and sad all of a sudden, and Derek has no idea why. Admittedly, he's been paying more attention to Barry and his food than the screen, so it takes him a moment to piece it all together. It's been a really long time since he's seen the episode, but eventually it comes flooding back to him. Derek has a hard time watching anything involving house fires, just like Barry is particularly troubled by time travel and sacrifice.

"Hey," Derek says quietly, leaning in to wrap his arms around Barry and rest his chin on Barry's shoulder, nuzzling softly at his neck. "We can watch something else."

He bites his lip and presses a kiss behind Barry's ear, something soft and sweet just to remind Barry that Derek is there, that he cares. He still isn't the best at talking, but he's more than capable of listening. "Or-- do you want to talk about it?"