Wow, my take is entirely different than most of the replies here. I think they were flirting. Her blog post did not jibe with what I saw in the video at all. I am not a huge fan of either of them, but the "interview" was not intended to be a serious thing in the first place. They were both smiling and flirty throughout, in my opinion, and for the context and type of interview, I didn't think either was unprofessional or out of line.