I assume Talia did the old rapid aging thing on Damien.
Good question about Abin's partner. One I never thought of and wonder if the editors and writers have. Then the whole police department set grafted on the Corps usually has me scratching my head. Especially GLs who function as some other than a sector patrolman. How do they find the time to patrol if they are the drill instructor, Keeper of the Book of Oa or Prison Warden?