In a way, this almost supports Jaime not knowing much until after all is said and done. Tywin may put some trust in ravens, but how much when the recipient is behind enemy lines so to speak. It would be just as likely for the ravens to be intercepted by the King. Then again, Pycelle is maester, so there may be a certain level of trust there. ::: I would actually find it more ironic if Jaime only learned of his father's plans well after the events occurred. Ned blames Jaime for being a part of it all along, when in reality he only played his part due to circumstances beyond anyone's control.
Why must I always be the isle of crazy alone in an ocean of sensibility? The should to everybody else’s shouldn’t? The I-will to their better-nots?