Wes couldn't really believe what he was watching was actually happening. He had to stop his jaw from dropping as Santana placed her order. He'd never seen Santana angry like this before and he knew from this moment forward, he'd stick to her good side, no doubt.
Wes turned to face Blaine for a second as Santana practically demanded a Diet Dr. Pepper and Blaine was just smiling. SMILING. Like this was normal behavior. Which, it probably was - Wes didn't actually know Santana that well, and during all of their interactions, she'd been perfectly pleasant around him, feisty, of course, but not downright rude.
He made a mental note to leave the waitress a sizable tip and sipped idly at his water to distract him from the verbal attack on the waitress. Finally she left, just as horrified as Wes felt from the look on her face, and he sat back, listening to Blaine tell his story.
Wes had heard it quite a few times over the years, but it still made his blood boil a little just the same. He wasn't lying when he said he remembers how Blaine was back then - withdrawn, quiet, skittish - practically the opposite of the Blaine he knew today. He didn't understand how people could live with themselves after doing something like what they did to Blaine.
The waitress reappeared with Blaine and Wes's milkshakes, plus Santana's soda. Wes took a sip of his vanilla shake and hoped for the waitress's sake, Santana's glass was clean.