This is the reason I have been rereading the books, so I can compare the source material and the show, also completely off topic but... didn't Renly have curly hair? I seem to remember him being described as having curly hair for some reason.
I too also thought the scene between Cersei and Robert was really well done too, the look in Robert's eyes at the end was memorable, its like he (the actor) was really upset and conveyed that through his character superbly.
4.5/5 for this episode.