It still can, I think. Only this time, it's probably Karyn's emotions under the microscope.
This wouldn't be a bad thing since we still haven't gone that deep into how these events have affected Jon and Karyn's relationship. After all, the whole thing was technically her fault, though neither friend seems to have made the connection.
If you really want to, we can probably just go with it. Jon might have made that wish the night before, and it just now came to light much to Karyn's shock. Dun dun DUN!