You’re Asmodeus (in this au, Fizz still works for Mammon). Asmodeus had noticed for some time that Fizz had been eating less than usual and it was worrying him a lot.

Then, finally after a few weeks, Asmodeus asked him about it…

“Oh you know, Ozzie... It's no big deal! Just keeping my shape...!" Fizz had replied, while applying some foundation to his face.