They literally live the exact same way they did before the pandemic (except for DL being closed). How has it been so fatiguing when they act as though the virus doesn’t even exist? If KT actually would have done something selfless got once like working on the front line as a nurse, especially since many hospitals are critically understaffed, then I’d believe the fatigue thing. But she didn’t do any of that, she just ate and grifted her way through DL and WDW instead. How exhausting