Karyn mulls over the idea of telling Jon directly, but realized he'd never go for it. She decides to make the wish and not tell him about it in hopes of her keeping the guy's uniform. Waiting until after Jon leaves the house, she goes and takes the stone.
_"I wish that the mixup would never be solved, and that Jon is never able to buy a male's uniform, and I am never able to buy a female's uniform."
Just to be on the safe side, she wishes. "I wish jon will never find out about this wish."
With that done, she jogs out and catvhes up with Jon.