Agatha isn’t a fan of marrying Tarvek just on principle. Part of this au involves Mamma Lucrez

Agatha isn’t a fan of marrying Tarvek just on principle. Part of this au involves Mamma Lucrezia being very against her darling daughter hanging out with Those Horrible Wulfenbachs. So naturally Agatha is into Gil on principle too. 

This is possibly the worst case scenario for Tarvek.