Lizzie Saltzman already knew Penelope was leaving and didn’t tell Josie because she just didn’t think it was important to tell her.
Apparently Penelope mentioned in her letter to Josie that she was moving to Europe.
After all, Penelope was introduced to all of us as Josie’s evil ex, so good riddance?
It was not so simple for Josie, and not at all simple for fans who had come to love Penelope and also love the #Posie romance that was re-brewing between Josie and Penelope.