Mentally scarred by the Death Star's destruction, frozen for decades upon decades onto a drifting star destroyer, woken up by scavengers, saw the Empire is still kicking around.
Everyone up to speed? Good.
Fighting to avenge the Emperor and the now-dead comrades in arms, bust mostly for peace after seeing the new face of the galaxy.
PS: Jedi love is treason, but it ain't treason if nobody knows about it... and still lives.