DH and I felt the Colin Sweeney thing was a bum note, especially the "actor" cameo.
The Kalinda/Bishop thing was interesting. DH thinks Bishop is actually quite lonely. We both think Kalinda's relationship with Dylan will protect her and has significantly reduced her chances of being whacked by Bishop's henchmen.
Also, Grace and Wobbly Alicia at the end - awww.
When I think about it, loneliness due to role/position was a recurring theme - the Alicia/Prady scene too.