It's so strange, seeing a morbidly obese female noble character that ISN'T an insufferable whale, and it's even more strange for said character to actually be a good character in general. It looks like she swallowed a cheese wheel though; what the hell happened with her neck since the last time she arrived? It was definitely not that thick.
As much as I hope she deflates and looks more normal at some point, I sincerely hope she actually takes on a hideous appearance. That would be a fun way to subvert expectations. Hopefully not pitbull flappy cheeks ugly, but like a skeleton wrapped in skin kind of ugly.