The way his brother freaks out has Delta turning off the sink and turning to look at Omega. Where had this come from?

His previous gesture turns to Delta tucking hair behind his ear as he looks at Omega.

"No, he wasn't in full armor. Tan jacket with a fur ruff. Tan shirt, said something like 'green fairy' on it I think? Scar around his left eye, which was milky white because he was mostly blind in it. He left Smithson's before me and we talked about... adjusting to our disabilities. Why, is there a problem?"