AUSTRIA HEADCANONS

OMG. Gilbert, why?

Roderich has a hard time dealing with certain emotions. As a coping method, he began eating comfort food to deal with them. For example, whenever he was feeling horny, he would eat something spicy.

Over the years, eating spicy food began to work in reverse and would turn him on even if he hadn't been.

Gilbert discovered this and began spiking his food with spices whenever Roderich was being stubborn.